-8.01% is the change from 886 to 815
Calculation steps:
[( 815 - 886 ) ÷ 886] x 100 = -8.01%
Formula
Percentage change = [(815 - 886) / 886] x 100
Subtract the new number by the original number
815 - 886 = -71
-71 ÷ 886 = -0.08013544018058691
-0.08013544018058691 x 100 = -8.01%