73.63% is the change from 421 to 731
Calculation steps:
[( 731 - 421 ) ÷ 421] x 100 = 73.63%
Formula
Percentage change = [(731 - 421) / 421] x 100
Subtract the new number by the original number
731 - 421 = 310
310 ÷ 421 = 0.7363420427553444
0.7363420427553444 x 100 = 73.63%