175.39% is the change from 256 to 705
Calculation steps:
[( 705 - 256 ) ÷ 256] x 100 = 175.39%
Formula
Percentage change = [(705 - 256) / 256] x 100
Subtract the new number by the original number
705 - 256 = 449
449 ÷ 256 = 1.75390625
1.75390625 x 100 = 175.39%