193.73% is the change from 255 to 749
Calculation steps:
[( 749 - 255 ) ÷ 255] x 100 = 193.73%
Formula
Percentage change = [(749 - 255) / 255] x 100
Subtract the new number by the original number
749 - 255 = 494
494 ÷ 255 = 1.9372549019607843
1.9372549019607843 x 100 = 193.73%