817.65% is the change from 85 to 780
Calculation steps:
[( 780 - 85 ) ÷ 85] x 100 = 817.65%
Formula
Percentage change = [(780 - 85) / 85] x 100
Subtract the new number by the original number
780 - 85 = 695
695 ÷ 85 = 8.176470588235293
8.176470588235293 x 100 = 817.65%