209.41% is the change from 255 to 789
Calculation steps:
[( 789 - 255 ) ÷ 255] x 100 = 209.41%
Formula
Percentage change = [(789 - 255) / 255] x 100
Subtract the new number by the original number
789 - 255 = 534
534 ÷ 255 = 2.0941176470588236
2.0941176470588236 x 100 = 209.41%