-3.91% is the change from 921 to 885
Calculation steps:
[( 885 - 921 ) ÷ 921] x 100 = -3.91%
Formula
Percentage change = [(885 - 921) / 921] x 100
Subtract the new number by the original number
885 - 921 = -36
-36 ÷ 921 = -0.03908794788273615
-0.03908794788273615 x 100 = -3.91%