-8.13% is the change from 996 to 915
Calculation steps:
[( 915 - 996 ) ÷ 996] x 100 = -8.13%
Formula
Percentage change = [(915 - 996) / 996] x 100
Subtract the new number by the original number
915 - 996 = -81
-81 ÷ 996 = -0.08132530120481928
-0.08132530120481928 x 100 = -8.13%