-15.58% is the change from 847 to 715
Calculation steps:
[( 715 - 847 ) ÷ 847] x 100 = -15.58%
Formula
Percentage change = [(715 - 847) / 847] x 100
Subtract the new number by the original number
715 - 847 = -132
-132 ÷ 847 = -0.15584415584415584
-0.15584415584415584 x 100 = -15.58%