-52.19% is the change from 663 to 317
Calculation steps:
[( 317 - 663 ) ÷ 663] x 100 = -52.19%
Formula
Percentage change = [(317 - 663) / 663] x 100
Subtract the new number by the original number
317 - 663 = -346
-346 ÷ 663 = -0.521870286576169
-0.521870286576169 x 100 = -52.19%