24.28% is the change from 173 to 215
Calculation steps:
[( 215 - 173 ) ÷ 173] x 100 = 24.28%
Formula
Percentage change = [(215 - 173) / 173] x 100
Subtract the new number by the original number
215 - 173 = 42
42 ÷ 173 = 0.24277456647398843
0.24277456647398843 x 100 = 24.28%