-18.61% is the change from 489 to 398
Calculation steps:
[( 398 - 489 ) ÷ 489] x 100 = -18.61%
Formula
Percentage change = [(398 - 489) / 489] x 100
Subtract the new number by the original number
398 - 489 = -91
-91 ÷ 489 = -0.18609406952965235
-0.18609406952965235 x 100 = -18.61%