-54.19% is the change from 609 to 279
Calculation steps:
[( 279 - 609 ) ÷ 609] x 100 = -54.19%
Formula
Percentage change = [(279 - 609) / 609] x 100
Subtract the new number by the original number
279 - 609 = -330
-330 ÷ 609 = -0.541871921182266
-0.541871921182266 x 100 = -54.19%