41.9% is the change from 580 to 823
Calculation steps:
[( 823 - 580 ) ÷ 580] x 100 = 41.9%
Formula
Percentage change = [(823 - 580) / 580] x 100
Subtract the new number by the original number
823 - 580 = 243
243 ÷ 580 = 0.4189655172413793
0.4189655172413793 x 100 = 41.9%