-57.1% is the change from 331 to 142
Calculation steps:
[( 142 - 331 ) ÷ 331] x 100 = -57.1%
Formula
Percentage change = [(142 - 331) / 331] x 100
Subtract the new number by the original number
142 - 331 = -189
-189 ÷ 331 = -0.5709969788519638
-0.5709969788519638 x 100 = -57.1%