71.57% is the change from 489 to 839
Calculation steps:
[( 839 - 489 ) ÷ 489] x 100 = 71.57%
Formula
Percentage change = [(839 - 489) / 489] x 100
Subtract the new number by the original number
839 - 489 = 350
350 ÷ 489 = 0.7157464212678937
0.7157464212678937 x 100 = 71.57%