-51.28% is the change from 624 to 304
Calculation steps:
[( 304 - 624 ) ÷ 624] x 100 = -51.28%
Formula
Percentage change = [(304 - 624) / 624] x 100
Subtract the new number by the original number
304 - 624 = -320
-320 ÷ 624 = -0.5128205128205128
-0.5128205128205128 x 100 = -51.28%