711.25% is the change from 80 to 649
Calculation steps:
[( 649 - 80 ) ÷ 80] x 100 = 711.25%
Formula
Percentage change = [(649 - 80) / 80] x 100
Subtract the new number by the original number
649 - 80 = 569
569 ÷ 80 = 7.1125
7.1125 x 100 = 711.25%
Example