-31.76% is the change from 85 to 58
Calculation steps:
[( 58 - 85 ) ÷ 85] x 100 = -31.76%
Formula
Percentage change = [(58 - 85) / 85] x 100
Subtract the new number by the original number
58 - 85 = -27
-27 ÷ 85 = -0.3176470588235294
-0.3176470588235294 x 100 = -31.76%