12.9% is the change from 155 to 175
Calculation steps:
[( 175 - 155 ) ÷ 155] x 100 = 12.9%
Formula
Percentage change = [(175 - 155) / 155] x 100
Subtract the new number by the original number
175 - 155 = 20
20 ÷ 155 = 0.12903225806451613
0.12903225806451613 x 100 = 12.9%