-38.97% is the change from 331 to 202
Calculation steps:
[( 202 - 331 ) ÷ 331] x 100 = -38.97%
Formula
Percentage change = [(202 - 331) / 331] x 100
Subtract the new number by the original number
202 - 331 = -129
-129 ÷ 331 = -0.38972809667673713
-0.38972809667673713 x 100 = -38.97%