-6.99% is the change from 873 to 812
Calculation steps:
[( 812 - 873 ) ÷ 873] x 100 = -6.99%
Formula
Percentage change = [(812 - 873) / 873] x 100
Subtract the new number by the original number
812 - 873 = -61
-61 ÷ 873 = -0.06987399770904926
-0.06987399770904926 x 100 = -6.99%