8.62% is the change from 580 to 630
Calculation steps:
[( 630 - 580 ) ÷ 580] x 100 = 8.62%
Formula
Percentage change = [(630 - 580) / 580] x 100
Subtract the new number by the original number
630 - 580 = 50
50 ÷ 580 = 0.08620689655172414
0.08620689655172414 x 100 = 8.62%