22.22% is the change from 54 to 66
Calculation steps:
[( 66 - 54 ) ÷ 54] x 100 = 22.22%
Formula
Percentage change = [(66 - 54) / 54] x 100
Subtract the new number by the original number
66 - 54 = 12
12 ÷ 54 = 0.2222222222222222
0.2222222222222222 x 100 = 22.22%