42.54% is the change from 583 to 831
Calculation steps:
[( 831 - 583 ) ÷ 583] x 100 = 42.54%
Formula
Percentage change = [(831 - 583) / 583] x 100
Subtract the new number by the original number
831 - 583 = 248
248 ÷ 583 = 0.42538593481989706
0.42538593481989706 x 100 = 42.54%