-52.76% is the change from 489 to 231
Calculation steps:
[( 231 - 489 ) ÷ 489] x 100 = -52.76%
Formula
Percentage change = [(231 - 489) / 489] x 100
Subtract the new number by the original number
231 - 489 = -258
-258 ÷ 489 = -0.5276073619631901
-0.5276073619631901 x 100 = -52.76%