-13.4% is the change from 873 to 756
Calculation steps:
[( 756 - 873 ) ÷ 873] x 100 = -13.4%
Formula
Percentage change = [(756 - 873) / 873] x 100
Subtract the new number by the original number
756 - 873 = -117
-117 ÷ 873 = -0.13402061855670103
-0.13402061855670103 x 100 = -13.4%