230.47% is the change from 256 to 846
Calculation steps:
[( 846 - 256 ) ÷ 256] x 100 = 230.47%
Formula
Percentage change = [(846 - 256) / 256] x 100
Subtract the new number by the original number
846 - 256 = 590
590 ÷ 256 = 2.3046875
2.3046875 x 100 = 230.47%