905.88% is the change from 85 to 855
Calculation steps:
[( 855 - 85 ) ÷ 85] x 100 = 905.88%
Formula
Percentage change = [(855 - 85) / 85] x 100
Subtract the new number by the original number
855 - 85 = 770
770 ÷ 85 = 9.058823529411764
9.058823529411764 x 100 = 905.88%