21.75% is the change from 331 to 403
Calculation steps:
[( 403 - 331 ) ÷ 331] x 100 = 21.75%
Formula
Percentage change = [(403 - 331) / 331] x 100
Subtract the new number by the original number
403 - 331 = 72
72 ÷ 331 = 0.2175226586102719
0.2175226586102719 x 100 = 21.75%