-55.59% is the change from 331 to 147
Calculation steps:
[( 147 - 331 ) ÷ 331] x 100 = -55.59%
Formula
Percentage change = [(147 - 331) / 331] x 100
Subtract the new number by the original number
147 - 331 = -184
-184 ÷ 331 = -0.5558912386706949
-0.5558912386706949 x 100 = -55.59%