-0.82% is the change from 489 to 485
Calculation steps:
[( 485 - 489 ) ÷ 489] x 100 = -0.82%
Formula
Percentage change = [(485 - 489) / 489] x 100
Subtract the new number by the original number
485 - 489 = -4
-4 ÷ 489 = -0.0081799591002045
-0.0081799591002045 x 100 = -0.82%