807.06% is the change from 85 to 771
Calculation steps:
[( 771 - 85 ) ÷ 85] x 100 = 807.06%
Formula
Percentage change = [(771 - 85) / 85] x 100
Subtract the new number by the original number
771 - 85 = 686
686 ÷ 85 = 8.070588235294117
8.070588235294117 x 100 = 807.06%