786.25% is the change from 80 to 709
Calculation steps:
[( 709 - 80 ) ÷ 80] x 100 = 786.25%
Formula
Percentage change = [(709 - 80) / 80] x 100
Subtract the new number by the original number
709 - 80 = 629
629 ÷ 80 = 7.8625
7.8625 x 100 = 786.25%
Example