22.54% is the change from 173 to 212
Calculation steps:
[( 212 - 173 ) ÷ 173] x 100 = 22.54%
Formula
Percentage change = [(212 - 173) / 173] x 100
Subtract the new number by the original number
212 - 173 = 39
39 ÷ 173 = 0.2254335260115607
0.2254335260115607 x 100 = 22.54%