-79.5% is the change from 200 to 41
Calculation steps:
[( 41 - 200 ) ÷ 200] x 100 = -79.5%
Formula
Percentage change = [(41 - 200) / 200] x 100
Subtract the new number by the original number
41 - 200 = -159
-159 ÷ 200 = -0.795
-0.795 x 100 = -79.5%
Example