10.68% is the change from 646 to 715
Calculation steps:
[( 715 - 646 ) ÷ 646] x 100 = 10.68%
Formula
Percentage change = [(715 - 646) / 646] x 100
Subtract the new number by the original number
715 - 646 = 69
69 ÷ 646 = 0.10681114551083591
0.10681114551083591 x 100 = 10.68%