68.46% is the change from 428 to 721
Calculation steps:
[( 721 - 428 ) ÷ 428] x 100 = 68.46%
Formula
Percentage change = [(721 - 428) / 428] x 100
Subtract the new number by the original number
721 - 428 = 293
293 ÷ 428 = 0.6845794392523364
0.6845794392523364 x 100 = 68.46%