190.23% is the change from 256 to 743
Calculation steps:
[( 743 - 256 ) ÷ 256] x 100 = 190.23%
Formula
Percentage change = [(743 - 256) / 256] x 100
Subtract the new number by the original number
743 - 256 = 487
487 ÷ 256 = 1.90234375
1.90234375 x 100 = 190.23%