-75% is the change from 164 to 41
Calculation steps:
[( 41 - 164 ) ÷ 164] x 100 = -75%
Formula
Percentage change = [(41 - 164) / 164] x 100
Subtract the new number by the original number
41 - 164 = -123
-123 ÷ 164 = -0.75
-0.75 x 100 = -75%
Example