Stock worth $80 a share dropped in value by 15% on tuesday, then increased by $7 the next wednesday and, finally, increased by 12% on thursday. what was the final price of a share?

The final price of share is $84

Step-by-step explanation:

Initial price of share = $ 80

The price of share is dropped by 15% on Tuesday

Drop in share = 15 % of 80  = 0.15×80 =  $12

Price of share after 15% drop in price = $80 -$12 = $ 68

Price of share increased by $7 on Wednesday

Price of share on Wednesday = $68 +$7 =$ 75

on Thursday the price of share was increased by 12%

So the price of share on Thursday = price of share + 12 % of price of share

                                                         = $75 +12 % of $ 75

                                                          = $75 +0.12 ×$ 75

                                                          = $ 75 +$9  = $ 84

The final price of share is $84