-45.62% is the change from 331 to 180
Calculation steps:
[( 180 - 331 ) ÷ 331] x 100 = -45.62%
Formula
Percentage change = [(180 - 331) / 331] x 100
Subtract the new number by the original number
180 - 331 = -151
-151 ÷ 331 = -0.4561933534743202
-0.4561933534743202 x 100 = -45.62%