191.37% is the change from 255 to 743
Calculation steps:
[( 743 - 255 ) ÷ 255] x 100 = 191.37%
Formula
Percentage change = [(743 - 255) / 255] x 100
Subtract the new number by the original number
743 - 255 = 488
488 ÷ 255 = 1.9137254901960785
1.9137254901960785 x 100 = 191.37%