77.91% is the change from 326 to 580
Calculation steps:
[( 580 - 326 ) ÷ 326] x 100 = 77.91%
Formula
Percentage change = [(580 - 326) / 326] x 100
Subtract the new number by the original number
580 - 326 = 254
254 ÷ 326 = 0.7791411042944786
0.7791411042944786 x 100 = 77.91%