-40.56% is the change from 678 to 403
Calculation steps:
[( 403 - 678 ) ÷ 678] x 100 = -40.56%
Formula
Percentage change = [(403 - 678) / 678] x 100
Subtract the new number by the original number
403 - 678 = -275
-275 ÷ 678 = -0.4056047197640118
-0.4056047197640118 x 100 = -40.56%