27.17% is the change from 173 to 220
Calculation steps:
[( 220 - 173 ) ÷ 173] x 100 = 27.17%
Formula
Percentage change = [(220 - 173) / 173] x 100
Subtract the new number by the original number
220 - 173 = 47
47 ÷ 173 = 0.27167630057803466
0.27167630057803466 x 100 = 27.17%