701.25% is the change from 80 to 641
Calculation steps:
[( 641 - 80 ) ÷ 80] x 100 = 701.25%
Formula
Percentage change = [(641 - 80) / 80] x 100
Subtract the new number by the original number
641 - 80 = 561
561 ÷ 80 = 7.0125
7.0125 x 100 = 701.25%
Example