207.03% is the change from 256 to 786
Calculation steps:
[( 786 - 256 ) ÷ 256] x 100 = 207.03%
Formula
Percentage change = [(786 - 256) / 256] x 100
Subtract the new number by the original number
786 - 256 = 530
530 ÷ 256 = 2.0703125
2.0703125 x 100 = 207.03%