-26.81% is the change from 940 to 688
Calculation steps:
[( 688 - 940 ) ÷ 940] x 100 = -26.81%
Formula
Percentage change = [(688 - 940) / 940] x 100
Subtract the new number by the original number
688 - 940 = -252
-252 ÷ 940 = -0.2680851063829787
-0.2680851063829787 x 100 = -26.81%