9.55% is the change from 220 to 241
Calculation steps:
[( 241 - 220 ) ÷ 220] x 100 = 9.55%
Formula
Percentage change = [(241 - 220) / 220] x 100
Subtract the new number by the original number
241 - 220 = 21
21 ÷ 220 = 0.09545454545454546
0.09545454545454546 x 100 = 9.55%