-39.58% is the change from 331 to 200
Calculation steps:
[( 200 - 331 ) ÷ 331] x 100 = -39.58%
Formula
Percentage change = [(200 - 331) / 331] x 100
Subtract the new number by the original number
200 - 331 = -131
-131 ÷ 331 = -0.3957703927492447
-0.3957703927492447 x 100 = -39.58%