723.81% is the change from 21 to 173
Calculation steps:
[( 173 - 21 ) ÷ 21] x 100 = 723.81%
Formula
Percentage change = [(173 - 21) / 21] x 100
Subtract the new number by the original number
173 - 21 = 152
152 ÷ 21 = 7.238095238095238
7.238095238095238 x 100 = 723.81%