-95% is the change from 820 to 41
Calculation steps:
[( 41 - 820 ) ÷ 820] x 100 = -95%
Formula
Percentage change = [(41 - 820) / 820] x 100
Subtract the new number by the original number
41 - 820 = -779
-779 ÷ 820 = -0.95
-0.95 x 100 = -95%
Example