-48.39% is the change from 622 to 321
Calculation steps:
[( 321 - 622 ) ÷ 622] x 100 = -48.39%
Formula
Percentage change = [(321 - 622) / 622] x 100
Subtract the new number by the original number
321 - 622 = -301
-301 ÷ 622 = -0.48392282958199356
-0.48392282958199356 x 100 = -48.39%