232.42% is the change from 256 to 851
Calculation steps:
[( 851 - 256 ) ÷ 256] x 100 = 232.42%
Formula
Percentage change = [(851 - 256) / 256] x 100
Subtract the new number by the original number
851 - 256 = 595
595 ÷ 256 = 2.32421875
2.32421875 x 100 = 232.42%