-22.68% is the change from 635 to 491
Calculation steps:
[( 491 - 635 ) ÷ 635] x 100 = -22.68%
Formula
Percentage change = [(491 - 635) / 635] x 100
Subtract the new number by the original number
491 - 635 = -144
-144 ÷ 635 = -0.22677165354330708
-0.22677165354330708 x 100 = -22.68%