67.06% is the change from 428 to 715
Calculation steps:
[( 715 - 428 ) ÷ 428] x 100 = 67.06%
Formula
Percentage change = [(715 - 428) / 428] x 100
Subtract the new number by the original number
715 - 428 = 287
287 ÷ 428 = 0.6705607476635514
0.6705607476635514 x 100 = 67.06%