-50.08% is the change from 609 to 304
Calculation steps:
[( 304 - 609 ) ÷ 609] x 100 = -50.08%
Formula
Percentage change = [(304 - 609) / 609] x 100
Subtract the new number by the original number
304 - 609 = -305
-305 ÷ 609 = -0.5008210180623974
-0.5008210180623974 x 100 = -50.08%