-34.65% is the change from 609 to 398
Calculation steps:
[( 398 - 609 ) ÷ 609] x 100 = -34.65%
Formula
Percentage change = [(398 - 609) / 609] x 100
Subtract the new number by the original number
398 - 609 = -211
-211 ÷ 609 = -0.3464696223316913
-0.3464696223316913 x 100 = -34.65%