252.38% is the change from 231 to 814
Calculation steps:
[( 814 - 231 ) ÷ 231] x 100 = 252.38%
Formula
Percentage change = [(814 - 231) / 231] x 100
Subtract the new number by the original number
814 - 231 = 583
583 ÷ 231 = 2.5238095238095237
2.5238095238095237 x 100 = 252.38%