13.07% is the change from 153 to 173
Calculation steps:
[( 173 - 153 ) ÷ 153] x 100 = 13.07%
Formula
Percentage change = [(173 - 153) / 153] x 100
Subtract the new number by the original number
173 - 153 = 20
20 ÷ 153 = 0.13071895424836602
0.13071895424836602 x 100 = 13.07%