-21.9% is the change from 936 to 731
Calculation steps:
[( 731 - 936 ) ÷ 936] x 100 = -21.9%
Formula
Percentage change = [(731 - 936) / 936] x 100
Subtract the new number by the original number
731 - 936 = -205
-205 ÷ 936 = -0.21901709401709402
-0.21901709401709402 x 100 = -21.9%