13.99% is the change from 715 to 815
Calculation steps:
[( 815 - 715 ) ÷ 715] x 100 = 13.99%
Formula
Percentage change = [(815 - 715) / 715] x 100
Subtract the new number by the original number
815 - 715 = 100
100 ÷ 715 = 0.13986013986013987
0.13986013986013987 x 100 = 13.99%