239.04% is the change from 251 to 851
Calculation steps:
[( 851 - 251 ) ÷ 251] x 100 = 239.04%
Formula
Percentage change = [(851 - 251) / 251] x 100
Subtract the new number by the original number
851 - 251 = 600
600 ÷ 251 = 2.3904382470119523
2.3904382470119523 x 100 = 239.04%