5% is the change from 120 to 126
Calculation steps:
[( 126 - 120 ) ÷ 120] x 100 = 5%
Formula
Percentage change = [(126 - 120) / 120] x 100
Subtract the new number by the original number
126 - 120 = 6
6 ÷ 120 = 0.05
0.05 x 100 = 5%
Example