-39.22% is the change from 663 to 403
Calculation steps:
[( 403 - 663 ) ÷ 663] x 100 = -39.22%
Formula
Percentage change = [(403 - 663) / 663] x 100
Subtract the new number by the original number
403 - 663 = -260
-260 ÷ 663 = -0.39215686274509803
-0.39215686274509803 x 100 = -39.22%