207.81% is the change from 256 to 788
Calculation steps:
[( 788 - 256 ) ÷ 256] x 100 = 207.81%
Formula
Percentage change = [(788 - 256) / 256] x 100
Subtract the new number by the original number
788 - 256 = 532
532 ÷ 256 = 2.078125
2.078125 x 100 = 207.81%