-16.91% is the change from 479 to 398
Calculation steps:
[( 398 - 479 ) ÷ 479] x 100 = -16.91%
Formula
Percentage change = [(398 - 479) / 479] x 100
Subtract the new number by the original number
398 - 479 = -81
-81 ÷ 479 = -0.16910229645093947
-0.16910229645093947 x 100 = -16.91%