73.1% is the change from 420 to 727
Calculation steps:
[( 727 - 420 ) ÷ 420] x 100 = 73.1%
Formula
Percentage change = [(727 - 420) / 420] x 100
Subtract the new number by the original number
727 - 420 = 307
307 ÷ 420 = 0.7309523809523809
0.7309523809523809 x 100 = 73.1%