30.22% is the change from 139 to 181
Calculation steps:
[( 181 - 139 ) ÷ 139] x 100 = 30.22%
Formula
Percentage change = [(181 - 139) / 139] x 100
Subtract the new number by the original number
181 - 139 = 42
42 ÷ 139 = 0.302158273381295
0.302158273381295 x 100 = 30.22%