-25.04% is the change from 663 to 497
Calculation steps:
[( 497 - 663 ) ÷ 663] x 100 = -25.04%
Formula
Percentage change = [(497 - 663) / 663] x 100
Subtract the new number by the original number
497 - 663 = -166
-166 ÷ 663 = -0.25037707390648567
-0.25037707390648567 x 100 = -25.04%