12.3% is the change from 122 to 137
Calculation steps:
[( 137 - 122 ) ÷ 122] x 100 = 12.3%
Formula
Percentage change = [(137 - 122) / 122] x 100
Subtract the new number by the original number
137 - 122 = 15
15 ÷ 122 = 0.12295081967213115
0.12295081967213115 x 100 = 12.3%