208.2% is the change from 256 to 789
Calculation steps:
[( 789 - 256 ) ÷ 256] x 100 = 208.2%
Formula
Percentage change = [(789 - 256) / 256] x 100
Subtract the new number by the original number
789 - 256 = 533
533 ÷ 256 = 2.08203125
2.08203125 x 100 = 208.2%