-12.71% is the change from 936 to 817
Calculation steps:
[( 817 - 936 ) ÷ 936] x 100 = -12.71%
Formula
Percentage change = [(817 - 936) / 936] x 100
Subtract the new number by the original number
817 - 936 = -119
-119 ÷ 936 = -0.12713675213675213
-0.12713675213675213 x 100 = -12.71%