69.6% is the change from 421 to 714
Calculation steps:
[( 714 - 421 ) ÷ 421] x 100 = 69.6%
Formula
Percentage change = [(714 - 421) / 421] x 100
Subtract the new number by the original number
714 - 421 = 293
293 ÷ 421 = 0.6959619952494062
0.6959619952494062 x 100 = 69.6%