38.38% is the change from 99 to 137
Calculation steps:
[( 137 - 99 ) ÷ 99] x 100 = 38.38%
Formula
Percentage change = [(137 - 99) / 99] x 100
Subtract the new number by the original number
137 - 99 = 38
38 ÷ 99 = 0.3838383838383838
0.3838383838383838 x 100 = 38.38%