286.33% is the change from 256 to 989
Calculation steps:
[( 989 - 256 ) ÷ 256] x 100 = 286.33%
Formula
Percentage change = [(989 - 256) / 256] x 100
Subtract the new number by the original number
989 - 256 = 733
733 ÷ 256 = 2.86328125
2.86328125 x 100 = 286.33%