-50.55% is the change from 635 to 314
Calculation steps:
[( 314 - 635 ) ÷ 635] x 100 = -50.55%
Formula
Percentage change = [(314 - 635) / 635] x 100
Subtract the new number by the original number
314 - 635 = -321
-321 ÷ 635 = -0.5055118110236221
-0.5055118110236221 x 100 = -50.55%