-1.39% is the change from 936 to 923
Calculation steps:
[( 923 - 936 ) ÷ 936] x 100 = -1.39%
Formula
Percentage change = [(923 - 936) / 936] x 100
Subtract the new number by the original number
923 - 936 = -13
-13 ÷ 936 = -0.013888888888888888
-0.013888888888888888 x 100 = -1.39%