-40.1% is the change from 202 to 121
Calculation steps:
[( 121 - 202 ) ÷ 202] x 100 = -40.1%
Formula
Percentage change = [(121 - 202) / 202] x 100
Subtract the new number by the original number
121 - 202 = -81
-81 ÷ 202 = -0.400990099009901
-0.400990099009901 x 100 = -40.1%