-12.39% is the change from 815 to 714
Calculation steps:
[( 714 - 815 ) ÷ 815] x 100 = -12.39%
Formula
Percentage change = [(714 - 815) / 815] x 100
Subtract the new number by the original number
714 - 815 = -101
-101 ÷ 815 = -0.12392638036809817
-0.12392638036809817 x 100 = -12.39%