57.46% is the change from 489 to 770
Calculation steps:
[( 770 - 489 ) ÷ 489] x 100 = 57.46%
Formula
Percentage change = [(770 - 489) / 489] x 100
Subtract the new number by the original number
770 - 489 = 281
281 ÷ 489 = 0.5746421267893661
0.5746421267893661 x 100 = 57.46%