-28.35% is the change from 635 to 455
Calculation steps:
[( 455 - 635 ) ÷ 635] x 100 = -28.35%
Formula
Percentage change = [(455 - 635) / 635] x 100
Subtract the new number by the original number
455 - 635 = -180
-180 ÷ 635 = -0.28346456692913385
-0.28346456692913385 x 100 = -28.35%