The information is readily available for anyone that wants to look it up. When Firorina started her career at the helm of HP, HP's stock was at $52 per share. When she left (was moved out by the board) five years later it was $21 per share. That's a 60 percent drop. During this same period, Dell's stock prices increased. On news of her departure from HP, the company's stock immediately increased 6.9 percent.
Any positives Firorina has are the result of a media makeover.
Not sure what your point was in asking but this stuff is pretty common knowledge.