-24.05% is the change from 873 to 663
Calculation steps:
[( 663 - 873 ) ÷ 873] x 100 = -24.05%
Formula
Percentage change = [(663 - 873) / 873] x 100
Subtract the new number by the original number
663 - 873 = -210
-210 ÷ 873 = -0.24054982817869416
-0.24054982817869416 x 100 = -24.05%