192.58% is the change from 256 to 749
Calculation steps:
[( 749 - 256 ) ÷ 256] x 100 = 192.58%
Formula
Percentage change = [(749 - 256) / 256] x 100
Subtract the new number by the original number
749 - 256 = 493
493 ÷ 256 = 1.92578125
1.92578125 x 100 = 192.58%