11.39% is the change from 439 to 489
Calculation steps:
[( 489 - 439 ) ÷ 439] x 100 = 11.39%
Formula
Percentage change = [(489 - 439) / 439] x 100
Subtract the new number by the original number
489 - 439 = 50
50 ÷ 439 = 0.11389521640091116
0.11389521640091116 x 100 = 11.39%