222.66% is the change from 256 to 826
Calculation steps:
[( 826 - 256 ) ÷ 256] x 100 = 222.66%
Formula
Percentage change = [(826 - 256) / 256] x 100
Subtract the new number by the original number
826 - 256 = 570
570 ÷ 256 = 2.2265625
2.2265625 x 100 = 222.66%