139.22% is the change from 255 to 610
Calculation steps:
[( 610 - 255 ) ÷ 255] x 100 = 139.22%
Formula
Percentage change = [(610 - 255) / 255] x 100
Subtract the new number by the original number
610 - 255 = 355
355 ÷ 255 = 1.392156862745098
1.392156862745098 x 100 = 139.22%