-38.91% is the change from 663 to 405
Calculation steps:
[( 405 - 663 ) ÷ 663] x 100 = -38.91%
Formula
Percentage change = [(405 - 663) / 663] x 100
Subtract the new number by the original number
405 - 663 = -258
-258 ÷ 663 = -0.3891402714932127
-0.3891402714932127 x 100 = -38.91%