249.16% is the change from 238 to 831
Calculation steps:
[( 831 - 238 ) ÷ 238] x 100 = 249.16%
Formula
Percentage change = [(831 - 238) / 238] x 100
Subtract the new number by the original number
831 - 238 = 593
593 ÷ 238 = 2.491596638655462
2.491596638655462 x 100 = 249.16%