872.5% is the change from 80 to 778
Calculation steps:
[( 778 - 80 ) ÷ 80] x 100 = 872.5%
Formula
Percentage change = [(778 - 80) / 80] x 100
Subtract the new number by the original number
778 - 80 = 698
698 ÷ 80 = 8.725
8.725 x 100 = 872.5%
Example