192.19% is the change from 256 to 748
Calculation steps:
[( 748 - 256 ) ÷ 256] x 100 = 192.19%
Formula
Percentage change = [(748 - 256) / 256] x 100
Subtract the new number by the original number
748 - 256 = 492
492 ÷ 256 = 1.921875
1.921875 x 100 = 192.19%