-11.32% is the change from 936 to 830
Calculation steps:
[( 830 - 936 ) ÷ 936] x 100 = -11.32%
Formula
Percentage change = [(830 - 936) / 936] x 100
Subtract the new number by the original number
830 - 936 = -106
-106 ÷ 936 = -0.11324786324786325
-0.11324786324786325 x 100 = -11.32%