-50.16% is the change from 610 to 304
Calculation steps:
[( 304 - 610 ) ÷ 610] x 100 = -50.16%
Formula
Percentage change = [(304 - 610) / 610] x 100
Subtract the new number by the original number
304 - 610 = -306
-306 ÷ 610 = -0.5016393442622951
-0.5016393442622951 x 100 = -50.16%