-9.29% is the change from 904 to 820
Calculation steps:
[( 820 - 904 ) ÷ 904] x 100 = -9.29%
Formula
Percentage change = [(820 - 904) / 904] x 100
Subtract the new number by the original number
820 - 904 = -84
-84 ÷ 904 = -0.09292035398230089
-0.09292035398230089 x 100 = -9.29%