AUPH stock jumped up 60%, then down 60% did it return the same price

No, it didn't return to the same price

Step-by-step explanation:

Let the initial stock price be 100

When it increased by 60%, it went to:

60% = 60/100 = 0.6

0.6 * 100 = 60

100 + 60 = 160

Then, from 160, it decreased by 60%, so it went to:

60% = 0.6

So,

0.6 * 160 = 96

Now,

160 - 96 = 64

So final price is 64. So, it didn't go back to original (100).