233.73% is the change from 249 to 831
Calculation steps:
[( 831 - 249 ) ÷ 249] x 100 = 233.73%
Formula
Percentage change = [(831 - 249) / 249] x 100
Subtract the new number by the original number
831 - 249 = 582
582 ÷ 249 = 2.3373493975903616
2.3373493975903616 x 100 = 233.73%