127.34% is the change from 256 to 582
Calculation steps:
[( 582 - 256 ) ÷ 256] x 100 = 127.34%
Formula
Percentage change = [(582 - 256) / 256] x 100
Subtract the new number by the original number
582 - 256 = 326
326 ÷ 256 = 1.2734375
1.2734375 x 100 = 127.34%