-44.58% is the change from 489 to 271
Calculation steps:
[( 271 - 489 ) ÷ 489] x 100 = -44.58%
Formula
Percentage change = [(271 - 489) / 489] x 100
Subtract the new number by the original number
271 - 489 = -218
-218 ÷ 489 = -0.4458077709611452
-0.4458077709611452 x 100 = -44.58%