-3.9% is the change from 923 to 887
Calculation steps:
[( 887 - 923 ) ÷ 923] x 100 = -3.9%
Formula
Percentage change = [(887 - 923) / 923] x 100
Subtract the new number by the original number
887 - 923 = -36
-36 ÷ 923 = -0.0390032502708559
-0.0390032502708559 x 100 = -3.9%