-20.12% is the change from 860 to 687
Calculation steps:
[( 687 - 860 ) ÷ 860] x 100 = -20.12%
Formula
Percentage change = [(687 - 860) / 860] x 100
Subtract the new number by the original number
687 - 860 = -173
-173 ÷ 860 = -0.20116279069767443
-0.20116279069767443 x 100 = -20.12%