72.38% is the change from 420 to 724
Calculation steps:
[( 724 - 420 ) ÷ 420] x 100 = 72.38%
Formula
Percentage change = [(724 - 420) / 420] x 100
Subtract the new number by the original number
724 - 420 = 304
304 ÷ 420 = 0.7238095238095238
0.7238095238095238 x 100 = 72.38%