9.41% is the change from 202 to 221
Calculation steps:
[( 221 - 202 ) ÷ 202] x 100 = 9.41%
Formula
Percentage change = [(221 - 202) / 202] x 100
Subtract the new number by the original number
221 - 202 = 19
19 ÷ 202 = 0.09405940594059406
0.09405940594059406 x 100 = 9.41%