282.42% is the change from 256 to 979
Calculation steps:
[( 979 - 256 ) ÷ 256] x 100 = 282.42%
Formula
Percentage change = [(979 - 256) / 256] x 100
Subtract the new number by the original number
979 - 256 = 723
723 ÷ 256 = 2.82421875
2.82421875 x 100 = 282.42%