-50.64% is the change from 622 to 307
Calculation steps:
[( 307 - 622 ) ÷ 622] x 100 = -50.64%
Formula
Percentage change = [(307 - 622) / 622] x 100
Subtract the new number by the original number
307 - 622 = -315
-315 ÷ 622 = -0.5064308681672026
-0.5064308681672026 x 100 = -50.64%