15.45% is the change from 220 to 254
Calculation steps:
[( 254 - 220 ) ÷ 220] x 100 = 15.45%
Formula
Percentage change = [(254 - 220) / 220] x 100
Subtract the new number by the original number
254 - 220 = 34
34 ÷ 220 = 0.15454545454545454
0.15454545454545454 x 100 = 15.45%