202.34% is the change from 256 to 774
Calculation steps:
[( 774 - 256 ) ÷ 256] x 100 = 202.34%
Formula
Percentage change = [(774 - 256) / 256] x 100
Subtract the new number by the original number
774 - 256 = 518
518 ÷ 256 = 2.0234375
2.0234375 x 100 = 202.34%