double numbers

can someone tell me why this doesnt produce the rigth number?

Code:

---

#include <iostream.h>

int main()
{
        double ounces = 0;
        double tons = 0;
        double boxes = 0;
        cout << "enter number of ounces\n";
        cin >> ounces;
        tons = ounces / 35,273.92;
        cout << tons << endl;
        cout << ounces << endl;
        boxes = 35,273.92 / ounces;
        cout << boxes;
        return 0;
}

---

>can someone tell me why this doesnt produce the rigth number?
>tons = ounces / 35,273.92;
>boxes = 35,273.92 / ounces;
My first guess would be because you don't include commas in floating-point literals in C++.