-49.04% is the change from 622 to 317
Calculation steps:
[( 317 - 622 ) ÷ 622] x 100 = -49.04%
Formula
Percentage change = [(317 - 622) / 622] x 100
Subtract the new number by the original number
317 - 622 = -305
-305 ÷ 622 = -0.4903536977491961
-0.4903536977491961 x 100 = -49.04%