Amberite Amberite - 1 month ago 14
C# Question

Evenly divide a dollar amount (decimal) by an integer

I need to write an accounting routine for a program I am building that will give me an even division of a decimal by an integer. So that for example:

$143.13 / 5 =

28.62
28.62
28.63
28.63
28.63


I have seen the article here: http://stackoverflow.com/questions/577427/evenly-divide-in-c, but it seems like it only works for integer divisions. Any idea of an elegant solution to this problem?

Answer

Calculate the amounts one at a time, and subtract each amount from the total to make sure that you always have the correct total left:

decimal total = 143.13m;
int divider = 5;
while (divider > 0) {
  decimal amount = Math.Round(total / divider, 2);
  Console.WriteLine(amount);
  total -= amount;
  divider--;
}

result:

28,63
28,62
28,63
28,62
28,63