-42.9% is the change from 331 to 189
Calculation steps:
[( 189 - 331 ) ÷ 331] x 100 = -42.9%
Formula
Percentage change = [(189 - 331) / 331] x 100
Subtract the new number by the original number
189 - 331 = -142
-142 ÷ 331 = -0.42900302114803623
-0.42900302114803623 x 100 = -42.9%