-21.89% is the change from 635 to 496
Calculation steps:
[( 496 - 635 ) ÷ 635] x 100 = -21.89%
Formula
Percentage change = [(496 - 635) / 635] x 100
Subtract the new number by the original number
496 - 635 = -139
-139 ÷ 635 = -0.2188976377952756
-0.2188976377952756 x 100 = -21.89%