-5.5% is the change from 872 to 824
Calculation steps:
[( 824 - 872 ) ÷ 872] x 100 = -5.5%
Formula
Percentage change = [(824 - 872) / 872] x 100
Subtract the new number by the original number
824 - 872 = -48
-48 ÷ 872 = -0.05504587155963303
-0.05504587155963303 x 100 = -5.5%