14.03% is the change from 221 to 252
Calculation steps:
[( 252 - 221 ) ÷ 221] x 100 = 14.03%
Formula
Percentage change = [(252 - 221) / 221] x 100
Subtract the new number by the original number
252 - 221 = 31
31 ÷ 221 = 0.14027149321266968
0.14027149321266968 x 100 = 14.03%