811.76% is the change from 85 to 775
Calculation steps:
[( 775 - 85 ) ÷ 85] x 100 = 811.76%
Formula
Percentage change = [(775 - 85) / 85] x 100
Subtract the new number by the original number
775 - 85 = 690
690 ÷ 85 = 8.117647058823529
8.117647058823529 x 100 = 811.76%