191.41% is the change from 256 to 746
Calculation steps:
[( 746 - 256 ) ÷ 256] x 100 = 191.41%
Formula
Percentage change = [(746 - 256) / 256] x 100
Subtract the new number by the original number
746 - 256 = 490
490 ÷ 256 = 1.9140625
1.9140625 x 100 = 191.41%