-12.07% is the change from 936 to 823
Calculation steps:
[( 823 - 936 ) ÷ 936] x 100 = -12.07%
Formula
Percentage change = [(823 - 936) / 936] x 100
Subtract the new number by the original number
823 - 936 = -113
-113 ÷ 936 = -0.12072649572649573
-0.12072649572649573 x 100 = -12.07%