170.59% is the change from 85 to 230
Calculation steps:
[( 230 - 85 ) ÷ 85] x 100 = 170.59%
Formula
Percentage change = [(230 - 85) / 85] x 100
Subtract the new number by the original number
230 - 85 = 145
145 ÷ 85 = 1.7058823529411764
1.7058823529411764 x 100 = 170.59%