251.76% is the change from 255 to 897
Calculation steps:
[( 897 - 255 ) ÷ 255] x 100 = 251.76%
Formula
Percentage change = [(897 - 255) / 255] x 100
Subtract the new number by the original number
897 - 255 = 642
642 ÷ 255 = 2.5176470588235293
2.5176470588235293 x 100 = 251.76%