-27.19% is the change from 331 to 241
Calculation steps:
[( 241 - 331 ) ÷ 331] x 100 = -27.19%
Formula
Percentage change = [(241 - 331) / 331] x 100
Subtract the new number by the original number
241 - 331 = -90
-90 ÷ 331 = -0.2719033232628399
-0.2719033232628399 x 100 = -27.19%