-12.82% is the change from 936 to 816
Calculation steps:
[( 816 - 936 ) ÷ 936] x 100 = -12.82%
Formula
Percentage change = [(816 - 936) / 936] x 100
Subtract the new number by the original number
816 - 936 = -120
-120 ÷ 936 = -0.1282051282051282
-0.1282051282051282 x 100 = -12.82%