198.04% is the change from 255 to 760
Calculation steps:
[( 760 - 255 ) ÷ 255] x 100 = 198.04%
Formula
Percentage change = [(760 - 255) / 255] x 100
Subtract the new number by the original number
760 - 255 = 505
505 ÷ 255 = 1.9803921568627452
1.9803921568627452 x 100 = 198.04%