105.19% is the change from 405 to 831
Calculation steps:
[( 831 - 405 ) ÷ 405] x 100 = 105.19%
Formula
Percentage change = [(831 - 405) / 405] x 100
Subtract the new number by the original number
831 - 405 = 426
426 ÷ 405 = 1.0518518518518518
1.0518518518518518 x 100 = 105.19%