203.91% is the change from 256 to 778
Calculation steps:
[( 778 - 256 ) ÷ 256] x 100 = 203.91%
Formula
Percentage change = [(778 - 256) / 256] x 100
Subtract the new number by the original number
778 - 256 = 522
522 ÷ 256 = 2.0390625
2.0390625 x 100 = 203.91%