198.43% is the change from 255 to 761
Calculation steps:
[( 761 - 255 ) ÷ 255] x 100 = 198.43%
Formula
Percentage change = [(761 - 255) / 255] x 100
Subtract the new number by the original number
761 - 255 = 506
506 ÷ 255 = 1.9843137254901961
1.9843137254901961 x 100 = 198.43%