-36.25% is the change from 331 to 211
Calculation steps:
[( 211 - 331 ) ÷ 331] x 100 = -36.25%
Formula
Percentage change = [(211 - 331) / 331] x 100
Subtract the new number by the original number
211 - 331 = -120
-120 ÷ 331 = -0.36253776435045315
-0.36253776435045315 x 100 = -36.25%