Parallel Arrays-HELP!

I'm using Bloodshed..
I'm trying to make this program accept input for prices of 10 items, calculate and print sum, then the average price of all. I need to print the difference between the item price and average in their respective columns. I have NO idea where to get started with the 2d Arrays..I started with a regular array to test it, but I get crazy output- I noticed one thing.When the inputs are less than 20. or above, the output is fine..Can anyone Help??

Code:

---

#define Max 9
#include <iomanip.h>
#include <stdlib.h>

main()
  {  float Price[Max], Sum, Avg;int C;

    for(C=0;C<Max;C++)
      {cout<<"\n Enter Price "<<C<<" : ";
        cin>>Price[C];
      }
    for(C=0;C<Max;C++)
      { Sum=Sum+Price[C];}

      Avg=Sum/9.0;

        cout<<"\n Sum = "<<Sum<<endl;


        cout.setf(ios::floatfield, ios::showpoint);
        cout.setf(ios::fixed);
        cout<<setprecision(2);

        cout<<Avg<<endl;
      system("PAUSE");
      return 0;
}

---

***Output

Enter Price 0 : 12.99

Enter Price 1 : 13.99

Enter Price 2 : 14.99

Enter Price 3 : 15.99

Enter Price 4 : 16.99

Enter Price 5 : 17.99

Enter Price 6 : 18.99

Enter Price 7 : 19.99

Enter Price 8 : 20.99

Sum = 1.0442e+34
1160222550475306377922293111193600.00
Press any key to continue . . .

Please be merciful :(

Code:

---


#define Max 9
#include <iomanip.h>
#include <stdlib.h>


main()
{
        float Price[Max], Avg;
        float Sum = 0;
        int C;
        for (C=0;C<Max;C++)
        {
                Price[Max] = 0;
        }

        for (C=0;C<Max;C++)
        {
                cout<<"\n Enter Price "<<C<<" : ";
                cin>>Price[C];
        }
            for(C=0;C<Max;C++)
        {
                Sum=Sum+Price[C];
        }

        Avg=Sum/9;

        cout<<"\n Sum = "<<Sum<<endl;


        cout.setf(ios::floatfield, ios::showpoint);
        cout.setf(ios::fixed);
        cout<<setprecision(2);

        cout<<Avg<<endl;
        system("PAUSE");
        return 0;
}

---

Don't forget to initilize your variables.

int i;
i++;

Will produce undesired results.

int i = 0;
i++;

Should give you the desired result.

Ahh Yes..it works like a charm..thanks a lot ;)