252.81% is the change from 231 to 815
Calculation steps:
[( 815 - 231 ) ÷ 231] x 100 = 252.81%
Formula
Percentage change = [(815 - 231) / 231] x 100
Subtract the new number by the original number
815 - 231 = 584
584 ÷ 231 = 2.5281385281385282
2.5281385281385282 x 100 = 252.81%