237.11% is the change from 256 to 863
Calculation steps:
[( 863 - 256 ) ÷ 256] x 100 = 237.11%
Formula
Percentage change = [(863 - 256) / 256] x 100
Subtract the new number by the original number
863 - 256 = 607
607 ÷ 256 = 2.37109375
2.37109375 x 100 = 237.11%