-61.03% is the change from 331 to 129
Calculation steps:
[( 129 - 331 ) ÷ 331] x 100 = -61.03%
Formula
Percentage change = [(129 - 331) / 331] x 100
Subtract the new number by the original number
129 - 331 = -202
-202 ÷ 331 = -0.6102719033232629
-0.6102719033232629 x 100 = -61.03%