-25.41% is the change from 665 to 496
Calculation steps:
[( 496 - 665 ) ÷ 665] x 100 = -25.41%
Formula
Percentage change = [(496 - 665) / 665] x 100
Subtract the new number by the original number
496 - 665 = -169
-169 ÷ 665 = -0.25413533834586466
-0.25413533834586466 x 100 = -25.41%