On monday, a company stock closed at a price of $30.80 per share. on tuesday, it increased by $ 1.20 per share. on wednesday it fell by 6.25%. on thursday it fell by another 4% ,and on friday it increased by 2.5%. what is the net change in stock price from monday to friday

The net change in stock price from Monday to Friday is $1.28

Tuesday: $30.80 + $1.20 = $32.00

Wednesday: -6.25% OF $32 comes out to a $2 drop in stock price. So we're left with $30 per share.

Thursday: -4% of the stock price is $1.20 which leaves us with $28.80.

Friday: +2.5% of $28.80 is $0.72, which leaves us with $29.52

Which we can now calculate the net change in stock price from Monday to Friday by doing the original price minus the stock price on Friday, 
$30.80 - $29.52 = $1.28

Hope I could help, have a good one!