175.78% is the change from 256 to 706
Calculation steps:
[( 706 - 256 ) ÷ 256] x 100 = 175.78%
Formula
Percentage change = [(706 - 256) / 256] x 100
Subtract the new number by the original number
706 - 256 = 450
450 ÷ 256 = 1.7578125
1.7578125 x 100 = 175.78%