283.59% is the change from 256 to 982
Calculation steps:
[( 982 - 256 ) ÷ 256] x 100 = 283.59%
Formula
Percentage change = [(982 - 256) / 256] x 100
Subtract the new number by the original number
982 - 256 = 726
726 ÷ 256 = 2.8359375
2.8359375 x 100 = 283.59%