38.33% is the change from 120 to 166
Calculation steps:
[( 166 - 120 ) ÷ 120] x 100 = 38.33%
Formula
Percentage change = [(166 - 120) / 120] x 100
Subtract the new number by the original number
166 - 120 = 46
46 ÷ 120 = 0.38333333333333336
0.38333333333333336 x 100 = 38.33%