178.04% is the change from 255 to 709
Calculation steps:
[( 709 - 255 ) ÷ 255] x 100 = 178.04%
Formula
Percentage change = [(709 - 255) / 255] x 100
Subtract the new number by the original number
709 - 255 = 454
454 ÷ 255 = 1.780392156862745
1.780392156862745 x 100 = 178.04%