-38.37% is the change from 331 to 204
Calculation steps:
[( 204 - 331 ) ÷ 331] x 100 = -38.37%
Formula
Percentage change = [(204 - 331) / 331] x 100
Subtract the new number by the original number
204 - 331 = -127
-127 ÷ 331 = -0.38368580060422963
-0.38368580060422963 x 100 = -38.37%