138.38% is the change from 99 to 236
Calculation steps:
[( 236 - 99 ) ÷ 99] x 100 = 138.38%
Formula
Percentage change = [(236 - 99) / 99] x 100
Subtract the new number by the original number
236 - 99 = 137
137 ÷ 99 = 1.3838383838383839
1.3838383838383839 x 100 = 138.38%