958.82% is the change from 85 to 900
Calculation steps:
[( 900 - 85 ) ÷ 85] x 100 = 958.82%
Formula
Percentage change = [(900 - 85) / 85] x 100
Subtract the new number by the original number
900 - 85 = 815
815 ÷ 85 = 9.588235294117647
9.588235294117647 x 100 = 958.82%