-48.55% is the change from 622 to 320
Calculation steps:
[( 320 - 622 ) ÷ 622] x 100 = -48.55%
Formula
Percentage change = [(320 - 622) / 622] x 100
Subtract the new number by the original number
320 - 622 = -302
-302 ÷ 622 = -0.4855305466237942
-0.4855305466237942 x 100 = -48.55%