-51.76% is the change from 85 to 41
Calculation steps:
[( 41 - 85 ) ÷ 85] x 100 = -51.76%
Formula
Percentage change = [(41 - 85) / 85] x 100
Subtract the new number by the original number
41 - 85 = -44
-44 ÷ 85 = -0.5176470588235295
-0.5176470588235295 x 100 = -51.76%