18.81% is the change from 489 to 581
Calculation steps:
[( 581 - 489 ) ÷ 489] x 100 = 18.81%
Formula
Percentage change = [(581 - 489) / 489] x 100
Subtract the new number by the original number
581 - 489 = 92
92 ÷ 489 = 0.18813905930470348
0.18813905930470348 x 100 = 18.81%