12.5% is the change from 48 to 54
Calculation steps:
[( 54 - 48 ) ÷ 48] x 100 = 12.5%
Formula
Percentage change = [(54 - 48) / 48] x 100
Subtract the new number by the original number
54 - 48 = 6
6 ÷ 48 = 0.125
0.125 x 100 = 12.5%
Example