71.5% is the change from 421 to 722
Calculation steps:
[( 722 - 421 ) ÷ 421] x 100 = 71.5%
Formula
Percentage change = [(722 - 421) / 421] x 100
Subtract the new number by the original number
722 - 421 = 301
301 ÷ 421 = 0.7149643705463183
0.7149643705463183 x 100 = 71.5%