82.39% is the change from 318 to 580
Calculation steps:
[( 580 - 318 ) ÷ 318] x 100 = 82.39%
Formula
Percentage change = [(580 - 318) / 318] x 100
Subtract the new number by the original number
580 - 318 = 262
262 ÷ 318 = 0.8238993710691824
0.8238993710691824 x 100 = 82.39%