760% is the change from 80 to 688
Calculation steps:
[( 688 - 80 ) ÷ 80] x 100 = 760%
Formula
Percentage change = [(688 - 80) / 80] x 100
Subtract the new number by the original number
688 - 80 = 608
608 ÷ 80 = 7.6
7.6 x 100 = 760%
Example