70.69% is the change from 580 to 990
Calculation steps:
[( 990 - 580 ) ÷ 580] x 100 = 70.69%
Formula
Percentage change = [(990 - 580) / 580] x 100
Subtract the new number by the original number
990 - 580 = 410
410 ÷ 580 = 0.7068965517241379
0.7068965517241379 x 100 = 70.69%