-27.02% is the change from 940 to 686
Calculation steps:
[( 686 - 940 ) ÷ 940] x 100 = -27.02%
Formula
Percentage change = [(686 - 940) / 940] x 100
Subtract the new number by the original number
686 - 940 = -254
-254 ÷ 940 = -0.2702127659574468
-0.2702127659574468 x 100 = -27.02%