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