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Need help with math problem

Posted on 04/15/2014 3:31:11 PM PDT by ru4liberty

Don't laugh at us old folk. Our data bases are full, so we can't retain what we don't use like we once could.

My friend and I need some help from some of you mathematically inclined FReepers.

Problem:

Mike's sales goal last year was \$90,071. His employer increased it to \$124,111 this year. What percentage of increase is this, and how did you arrive at the answer?

TOPICS:
KEYWORDS: math
first 1-5051-78 next last

1 posted on 04/15/2014 3:31:11 PM PDT by ru4liberty

To: ru4liberty

I google percentage calculator and use that.

2 posted on 04/15/2014 3:33:32 PM PDT by cyclotic (Hey BSA-I'm gone. Walk Worthy-traillifeusa.com)

To: ru4liberty

Subtract the lower figure from the higher one. Divide the remainder by the lower figure.

3 posted on 04/15/2014 3:33:41 PM PDT by Genoa (Starve the beast.)

To: Toddsterpatriot

Help us.

4 posted on 04/15/2014 3:33:45 PM PDT by 1rudeboy

To: ru4liberty

38%

5 posted on 04/15/2014 3:34:05 PM PDT by KSCITYBOY

To: ru4liberty

Take the difference and divide it by the smaller number, the +\-\$90k number. The result is a decimal, something like .35 or so. That makes something like a 35% increase

6 posted on 04/15/2014 3:34:54 PM PDT by muir_redwoods (When I first read it, " Atlas Shrugged" was fiction)

To: ru4liberty

37.79% increase

7 posted on 04/15/2014 3:35:25 PM PDT by kingattax (America needs more real Americans.)

To: ru4liberty

8 posted on 04/15/2014 3:36:01 PM PDT by Grampa Dave ( Herr Obama cannot divert resources from his war on Americans!)

To: ru4liberty

124111/90071 would be a 37% increase

9 posted on 04/15/2014 3:36:22 PM PDT by UB355 (Slower traffic keep rigsupreme Splasht)

To: muir_redwoods

LOL, the teacher in me wouldn’t do it for them.

10 posted on 04/15/2014 3:36:32 PM PDT by Genoa (Starve the beast.)

To: ru4liberty

124,111 - 90071 = 34040

34040 / 90071 = 0.377924

0.377924 x 100 = 37.8 %

.. rounded to three significant digits.

11 posted on 04/15/2014 3:36:46 PM PDT by Westbrook (Children do not divide your love, they multiply it.)

To: ru4liberty

3.14 are round, cake are square;)

12 posted on 04/15/2014 3:37:40 PM PDT by mabarker1 (Please, Somebody Impeach the kenyan!!!!)

To: ru4liberty

Just looking at it, it’s a little over a third - did it in my head

13 posted on 04/15/2014 3:38:10 PM PDT by nuconvert ( Khomeini promised change too // Hail, Chairman O)

To: nuconvert

Use a slide rule if you want a more precise answer. ;-)

14 posted on 04/15/2014 3:38:57 PM PDT by Genoa (Starve the beast.)

To: ru4liberty
15 posted on 04/15/2014 3:39:39 PM PDT by dila813

To: ru4liberty
Divide \$90,071 by \$124,111 to find out what percent the former goal is of the new goal.

72.57%

Subtract from 100.

Round.

27%

16 posted on 04/15/2014 3:39:42 PM PDT by Harmless Teddy Bear (Proud Infidel, Gun Nut, Religious Fanatic and Freedom Fiend)

To: ru4liberty

Bwaaa! I’m getting an increase of 37.79% Don’t ask me how, cuz it’s probably way wrong!

17 posted on 04/15/2014 3:39:58 PM PDT by Dr. Bogus Pachysandra ( Ya can't pick up a turd by the clean end!)

To: Harmless Teddy Bear

No, that would have been the percentage if the higher figure had been reduced to the lower one.

18 posted on 04/15/2014 3:41:16 PM PDT by Genoa (Starve the beast.)

To: ru4liberty

Now the real answer. That is a significant increase.

There could be a number of reasons, hopefully your friend knows them.

19 posted on 04/15/2014 3:41:37 PM PDT by KSCITYBOY

To: ru4liberty
Don't be confused by the posters who tell you to "divide by the lower number." That's the right answer in this case, but not in every case.

If you're looking for a "percentage change" from Condition A to Condition B, always use Condition A (the starting point) as the denominator in the calculation.

% Change = (B-A)/A

Where:
B=124111
A=90071

When you do this calculation, the answer comes out to about 37.8%

20 posted on 04/15/2014 3:42:03 PM PDT by Alberta's Child ("I've never seen such a conclave of minstrels in my life.")

To: ru4liberty

It depends on which math you use:

—Obama math, used frequently by BLS and HHS for their fun-with-numbers as they pull numbers out of their rears

—New math, used to get you to think, regardless of what you come up with as the answer

—Real math, used to get the real answer — the stuff that was taught up until the late 1960s.

21 posted on 04/15/2014 3:42:31 PM PDT by TomGuy

To: Alberta's Child

“The lower number” is condition A, so what’s your point?

22 posted on 04/15/2014 3:43:43 PM PDT by Genoa (Starve the beast.)

To: Genoa
You are right, I was going in the wrong direction.

23 posted on 04/15/2014 3:46:26 PM PDT by Harmless Teddy Bear (Proud Infidel, Gun Nut, Religious Fanatic and Freedom Fiend)

To: ru4liberty

((y2 - y1) / y1)*100 = your percentage change.

24 posted on 04/15/2014 3:46:29 PM PDT by Ouderkirk (To the left, everything must evidence that this or that strand of leftist theory is true)

To: Genoa

hahaha do they still sell those?

25 posted on 04/15/2014 3:48:25 PM PDT by nuconvert ( Khomeini promised change too // Hail, Chairman O)

To: Harmless Teddy Bear

Sure! By the way, don't mail it before you check the math. LOL! :-)
26 posted on 04/15/2014 3:48:45 PM PDT by Genoa (Starve the beast.)

To: ru4liberty

((Old goal - New goal)/Old goal) * 100 = Percent increase.

27 posted on 04/15/2014 3:48:48 PM PDT by IronJack

To: ru4liberty

An approx 40% increase is pretty stiff.

Are they trying to fire him for cause or are they suspecting him of sandbagging them last year?

By how much did he make/miss his goal last year.

28 posted on 04/15/2014 3:52:05 PM PDT by Ouderkirk (To the left, everything must evidence that this or that strand of leftist theory is true)

To: ru4liberty

My calculator is presently unavailable, therefore this problem CANNOT BE SOLVED.

It is a TRICK QUESTION.

(at least as seen from the public schools that THOUSANDS of FReepers [if you can believe it] send their kids to)

29 posted on 04/15/2014 3:53:49 PM PDT by BobL

To: Genoa
Oh I did. :)
30 posted on 04/15/2014 3:54:00 PM PDT by Harmless Teddy Bear (Proud Infidel, Gun Nut, Religious Fanatic and Freedom Fiend)

To: ru4liberty

You really don’t have to go to all that trouble to subtract 90,071 from 124,111. That’s extra work that just burns calories and wastes time.

Here’s the right way to do the problem

124,111/90,071 = 1.377924

Bingo. A 37.7924% increase.

31 posted on 04/15/2014 3:55:32 PM PDT by InterceptPoint

To: ru4liberty

((\$124,111-\$90,071) divided by \$90,071) times 100% = 37.79%

((\$124,111-\$90,071)/\$90,071)*100%

32 posted on 04/15/2014 3:57:50 PM PDT by dhs12345

To: ru4liberty

I’m no Pythagorean but, if Bob doesn’t sell at least a million bucks he’s not gonna make enough money to keep his kitty happy.

33 posted on 04/15/2014 3:58:46 PM PDT by Vendome (Don't take life so seriously-you won't live through it anyway-Enjoy Yourself ala Louis Prima)

To: ru4liberty

Damn! Are they hiring?

34 posted on 04/15/2014 3:59:56 PM PDT by dgbrown

To: Harmless Teddy Bear

Wrong

35 posted on 04/15/2014 4:02:20 PM PDT by dirtymac (Now is the time for all good men to come to the aid of their country)

To: dirtymac

I know.

36 posted on 04/15/2014 4:02:55 PM PDT by Harmless Teddy Bear (Proud Infidel, Gun Nut, Religious Fanatic and Freedom Fiend)

To: ru4liberty

124,111 - 90,071 = 34,040

34,040 / 90,071 = .3779 * 100 = 37.79%

37 posted on 04/15/2014 4:03:00 PM PDT by RedMDer (May we always be happy and may our enemies always know it. - Sarah Palin, 10-18-2010)

To: Westbrook; ru4liberty

124111 divided by 90071 equals

1.377924

37.7924% increase

faster process...

38 posted on 04/15/2014 4:03:42 PM PDT by philly-d-kidder (AB-Sheen"The truth is the truth if nobody believes it,a lie is still a lie, everybody believes it")

To: InterceptPoint

But you have a heftier long division problem.

39 posted on 04/15/2014 4:05:19 PM PDT by Genoa (Starve the beast.)

To: nuconvert

E6B flight computer.

40 posted on 04/15/2014 4:05:38 PM PDT by SgtBob (Freedom is not for the faint of heart. Semper Fi!)

To: Genoa
Subtract the lower figure from the higher one. Divide the remainder by the lower figure.

A more general rule:

Subtract the initial number by the new number, and multiply the answer by 100.
If the result is negative, it's a decrease; if not, it's an increase.

41 posted on 04/15/2014 4:06:18 PM PDT by publius911 ( At least Nixon had the good g race to resign!)

To: ru4liberty

38%

1-(\$90,071/\$124,111)

Really you are asking this question?

42 posted on 04/15/2014 4:06:25 PM PDT by freedumb2003 (Fight Tapinophobia in all its forms! Do not submit to arduus privilege.)

To: publius911

>>Subtract the initial number by the new number, and multiply the answer by 100.
If the result is negative, it’s a decrease; if not, it’s an increase.<<

New Math
Tom Lehrer

“Some of you who have small children may have perhaps been put in the
embarrassing position of being unable to do your child’s arithmetic homework
because of the current revolution in mathematics teaching known as the New
Math. So as a public service here tonight I thought I would offer a brief
lesson in the New Math. Tonight we’re going to cover subtraction. This is the
first room I’ve worked for a while that didn’t have a blackboard so we will
have to make due with more primitive visual aids, as they say in the “ed biz.”
Consider the following subtraction problem, which I will put up here: 342 -
173.

Now remember how we used to do that. three from two is nine; carry the one, and
if you’re under 35 or went to a private school you say seven from three is six,
but if you’re over 35 and went to a public school you say eight from four is
six; carry the one so we have 169, but in the new approach, as you know, the
important thing is to understand what you’re doing rather than to get the right
answer. Here’s how they do it now.

You can’t take three from two,
Two is less than three,
So you look at the four in the tens place.
Now that’s really four tens,
So you make it three tens,
Regroup, and you change a ten to ten ones,
And you add them to the two and get twelve,
And you take away three, that’s nine.
Is that clear?

Now instead of four in the tens place
You’ve got three,
That is to say, ten, to the two,
But you can’t take seven from three,
So you look in the hundreds place.

From the three you then use one
To make ten ones...
(And you know why four plus minus one
Plus ten is fourteen minus one?
And so you have thirteen tens,
And you take away seven,
And that leaves five...

Well, six actually.
But the idea is the important thing.

Now go back to the hundreds place,
And you’re left with two.
And you take away one from two,
And that leaves...?

Everybody get one?
Not bad for the first day!

Hooray for new math,
New-hoo-hoo-math,
It won’t do you a bit of good to review math.
It’s so simple,
So very simple,
That only a child can do it!
Now that actually is not the answer that I had in mind, because the book that I
got this problem out of wants you to do it in base eight. But don’t panic. Base
eight is just like base ten really - if you’re missing two fingers. Shall we
have a go at it? Hang on.

You can’t take three from two,
Two is less than three,
So you look at the four in the eights place.
Now that’s really four eights,
So you make it three eights,
Regroup, and you change an eight to eight ones,
And you add them to the two,
and you get one-two base eight,
Which is ten base ten,
And you take away three, that’s seven. Ok?

Now instead of four in the eights place
You’ve got three,
That is to say, eight, to the two,
But you can’t take seven from three,
So you look at the sixty-fours.

“Sixty-four? How did sixty-four get into it?” I hear you cry.
Well, sixty-four is eight squared, don’t you see?
(Well, you ask a silly question, and you get a silly answer.)

From the three you then use one
To make eight ones,
And you add those ones to the three,
And you get one-three base eight,
Or, in other words,
In base ten you have eleven,
And you take away seven,
And seven from eleven is four.
Now go back to the sixty-fours,
And you’re left with two,
And you take away one from two,
And that leaves...?

Now, let’s not always see the same hands.
One, that’s right!
Whoever got one can stay after the show and clean the erasers.

Hooray for new math,
New-hoo-hoo-math,
It won’t do you a bit of good to review math.
It’s so simple,
So very simple,
That only a child can do it!

Come back tomorrow night. We’re gonna do fractions.
Now I’ve often thought I’d like to write a mathematics text book someday because I have
a title that I know will sell a million copies. I’m gonna call it Tropic Of
Calculus.”

43 posted on 04/15/2014 4:08:32 PM PDT by freedumb2003 (Fight Tapinophobia in all its forms! Do not submit to arduus privilege.)

To: dgbrown

I may have forgotten to mention that these are monthly goals, not yearly. Still, Texas would be glad to have you. I’m sure we could find a job you’d like, and we do need more conservatives moving here since Obungler and the ‘rats have targeted Texas in an attempt to turn it blue.

44 posted on 04/15/2014 4:08:39 PM PDT by ru4liberty

To: ru4liberty

Speaking of (and full disclosure: I am not mathematically -inclined), I used to sell \$50M of steel per year . . . but if some sales manager gave me that target, I would laugh in his face. I went through a number of sales/marketing managers in my time.

45 posted on 04/15/2014 4:10:51 PM PDT by 1rudeboy

To: ru4liberty

37.79%

(124111-90071)/90071

46 posted on 04/15/2014 4:15:18 PM PDT by PubliusMM (RKBA; a matter of fact, not opinion. 01-20-2016; I pray we make it that long.)

To: ru4liberty

Mike’s employer screwed up on the plan last year.

47 posted on 04/15/2014 4:19:45 PM PDT by SamAdams76

To: ru4liberty
percent of increase, percent of decrease, percent of change:

All of these follow the same rules

1. Subtract to find the difference between the original number and the "new" number

2. Divide that difference from (1) by the original number. You'll get a decimal.

3. Move the decimal point two spaces to the right and put in the percentage sign after that number.

48 posted on 04/15/2014 4:20:24 PM PDT by grania

To: ru4liberty

((Last Goal - First Goal)/(First Goal)) * 100.

Calculate the difference between goals. Divide that result by the first goal. Then multiply the result by 100.

49 posted on 04/15/2014 4:24:10 PM PDT by Chaguito

To: philly-d-kidder

Yes, very good!

But you have to tell the original poster that the reason you must subtract 1 from the quotient to obtain the percentage increase is because the dividend is 1 + the percentage increase of the divisor.

50 posted on 04/15/2014 4:25:52 PM PDT by Westbrook (Children do not divide your love, they multiply it.)