-6.53% is the change from 873 to 816
Calculation steps:
[( 816 - 873 ) ÷ 873] x 100 = -6.53%
Formula
Percentage change = [(816 - 873) / 873] x 100
Subtract the new number by the original number
816 - 873 = -57
-57 ÷ 873 = -0.06529209621993128
-0.06529209621993128 x 100 = -6.53%