210.94% is the change from 256 to 796
Calculation steps:
[( 796 - 256 ) ÷ 256] x 100 = 210.94%
Formula
Percentage change = [(796 - 256) / 256] x 100
Subtract the new number by the original number
796 - 256 = 540
540 ÷ 256 = 2.109375
2.109375 x 100 = 210.94%