57.74% is the change from 310 to 489
Calculation steps:
[( 489 - 310 ) ÷ 310] x 100 = 57.74%
Formula
Percentage change = [(489 - 310) / 310] x 100
Subtract the new number by the original number
489 - 310 = 179
179 ÷ 310 = 0.5774193548387097
0.5774193548387097 x 100 = 57.74%