1. ## rounding off outputs

I am making this program for a fake store that will take the price of an item and add it to the other items you put in and then multiply by sales tax. I was just wondering how i could round everything off to the 100th. For example, if the price of the item was 1.25 and that was all they bought, 1.25 * .0825 is 1.66562. I would like it to read 1.67. Here is the code so far.

Code:
```#include <iostream>

using namespace std;

main()
{
const float SALESTAX = .0825;
float totalprice;
float totalpricewithouttax;
float item1;
float item2;
float item3;
float item4;
float item5;

cout<<"Enter the price of an item: ";
cin>> item1;

if (item1 < 0) {
cout<<"You must enter a price";
return 1;
}

if (item1 > 0) {
cout<<"If this is the only item being bought, enter 0.  If not, enter the price for item 2: ";
}
cin>> item2;

if (item2 == 0) {
totalpricewithouttax= item1;
totalprice= (item1) * (item1 + SALESTAX);
cout<< "The price is "<< totalpricewithouttax<< endl;
cout<< "The total ammount due is "<< totalprice << endl;
}
}```

2. Use the fixed and setprecision() manipuators in your cout. Be sure to include <iomanip>.

ie... cout << fixed << setprecision(2) << "The price is.....

fixed will force the output in fixed (vs scientific) format, as well as force the trailing zeros to be displayed. setprecision() sets how many decimal points.

3. > was just wondering how i could round everything off to the 100th.
Code:
```#include <iomanip>
.
.
cout << "The price is "<< fixed << setprecision(2) << totalpricewithouttax<< endl;```

4. Or without using the <iomanip> header:

Code:
```float fVar;
...
cout.precision(2);
cout.flags(ios::fixed);
cout << fVar;```

5. Edit: damn! beaten.

6. Hi,
You can try something like this. It is crude, but effective.

roundedNumber = int (fabs(originalNumber) * 100 + 0.5) / 100