71.73% is the change from 421 to 723
Calculation steps:
[( 723 - 421 ) ÷ 421] x 100 = 71.73%
Formula
Percentage change = [(723 - 421) / 421] x 100
Subtract the new number by the original number
723 - 421 = 302
302 ÷ 421 = 0.7173396674584323
0.7173396674584323 x 100 = 71.73%