-19.59% is the change from 873 to 702
Calculation steps:
[( 702 - 873 ) ÷ 873] x 100 = -19.59%
Formula
Percentage change = [(702 - 873) / 873] x 100
Subtract the new number by the original number
702 - 873 = -171
-171 ÷ 873 = -0.1958762886597938
-0.1958762886597938 x 100 = -19.59%