-27.75% is the change from 609 to 440
Calculation steps:
[( 440 - 609 ) ÷ 609] x 100 = -27.75%
Formula
Percentage change = [(440 - 609) / 609] x 100
Subtract the new number by the original number
440 - 609 = -169
-169 ÷ 609 = -0.277504105090312
-0.277504105090312 x 100 = -27.75%