54.55% is the change from 99 to 153
Calculation steps:
[( 153 - 99 ) ÷ 99] x 100 = 54.55%
Formula
Percentage change = [(153 - 99) / 99] x 100
Subtract the new number by the original number
153 - 99 = 54
54 ÷ 99 = 0.5454545454545454
0.5454545454545454 x 100 = 54.55%