-3.69% is the change from 921 to 887
Calculation steps:
[( 887 - 921 ) ÷ 921] x 100 = -3.69%
Formula
Percentage change = [(887 - 921) / 921] x 100
Subtract the new number by the original number
887 - 921 = -34
-34 ÷ 921 = -0.03691639522258415
-0.03691639522258415 x 100 = -3.69%