-19.31% is the change from 663 to 535
Calculation steps:
[( 535 - 663 ) ÷ 663] x 100 = -19.31%
Formula
Percentage change = [(535 - 663) / 663] x 100
Subtract the new number by the original number
535 - 663 = -128
-128 ÷ 663 = -0.19306184012066366
-0.19306184012066366 x 100 = -19.31%