Thread: Need help rounding to the hundreth decimal place

i just started C++ programming and I need to write a program that caculates sales tax and the sales tax comes out to 2.375 and i need it to come out to 2.38.
my program is

Code:

// ----------------------------------------------------------

#include <iostream>
using namespace std;

int main()
{
	// (1) Declare program variables
	double wholesaleprice, storemarkupP, salestaxof, storemarkup, sellingprice, total;
	const double salestax = 8.25;

	// (2) Read in program inputs
	cout << "xxxxxxxxxxxxxxxxxxxx\nxEASY BUSINESS CALCx\nxxxxxxxxxxxxxxxxxxxx";
	cout << "\nEnter the wholesale price, then press enter\n$";
	cin >> wholesaleprice;
	cout << "Enter the markup percentage, then press enter\n&#37;";
	cin >> storemarkupP;

	// (3) Compute the program outputs
	storemarkup = storemarkupP * (.01 * wholesaleprice);
	sellingprice = wholesaleprice + storemarkup;
	salestaxof = sellingprice * (.01 * salestax);
	total = salestaxof + sellingprice;

	// (4) Display the results to file or screen
	cout << "  Whole sale price: $" << wholesaleprice << endl;
	cout << "Store markup price: $" << storemarkup << endl;
	cout << "     Selling price: $" << sellingprice << endl;
	cout << "         Sales tax: $" << salestaxof << endl;
	cout << "             Total: $" << total << endl;

	return 0;
}

instead of declaring the "salestaxof" variable as double is there a way to declare it so it rounds up to the nearest hundreth decimal place?