251.08% is the change from 231 to 811
Calculation steps:
[( 811 - 231 ) ÷ 231] x 100 = 251.08%
Formula
Percentage change = [(811 - 231) / 231] x 100
Subtract the new number by the original number
811 - 231 = 580
580 ÷ 231 = 2.5108225108225106
2.5108225108225106 x 100 = 251.08%