I noticed that as well. How can flour go up by over a third, butter by a quarter, and eggs by 36%, yet bread increase by less than 10%.
Something doesn’t make much sense here...
My guess would be that the bread is the finished product, which required expensive machines and man-hours to produce, which accounts for a lot (most?) of the price of bread. The cost of the raw materials put into the bread is probably(??) a low percentage of the total cost.