-5.32% is the change from 921 to 872
Calculation steps:
[( 872 - 921 ) ÷ 921] x 100 = -5.32%
Formula
Percentage change = [(872 - 921) / 921] x 100
Subtract the new number by the original number
872 - 921 = -49
-49 ÷ 921 = -0.053203040173724216
-0.053203040173724216 x 100 = -5.32%