I'm stuck please help

[SiliconPatriot]

Hi, this is an assignment for an intro to C++ class. When I run the program the totals for the Itemized bill should equal Total Room Charge = $600, Total Resort Fee $60, Total Resort Tax = $56.1, Total Bill = $716.1, Total Deposit = $66, and Amount due at arrival = $650.1

for me all the calculations come out right except Total Bill which i get $660, and Amount due $594. I figure that I'm not adding 56.1 into line 17 but when I do it gives me an error Does anyone one have any suggestions on why this isn't working. Also I was told not to hard code just use the variables.

  #include <iostream>
using namespace std;
int main()

{
	double roomCharge, TOTAL_RESORT_FEE, totalCharges, resortTax;
	double deposit, arrival;

	roomCharge = 6 * 100;
	TOTAL_RESORT_FEE = 10 * 6;
	totalCharges = roomCharge + TOTAL_RESORT_FEE;
	resortTax =.085 * totalCharges ;
	deposit = (totalCharges) * .10;
	arrival = totalCharges - deposit ;

	cout << "\nLength of stay = 6 days";
	cout << "\nDaily rate =  $100";
	cout << "\nDaily Resort Fee =  $10";
	cout << "\nResort Tax Rate = .085 ";


	cout << "\nItemized Bill:";
	cout << "\nTotal Room Charge = $" << roomCharge;
	cout << "\nTotal Resort Fee = $" << TOTAL_RESORT_FEE;
	cout << "\nTotal Resort Tax = " << resortTax;
	cout << "\nTotal Bill = $" << totalCharges;
	cout << "\nTotal deposit = $" << deposit;
	cout << "\nAmount due at arrival = $" << arrival;


	cout << endl << endl;
	system("pause");
	return 0;

}

[JLBorges]

#include <iostream>

int main()
{
    const int ndays = 6 ;
    const double room_rate = 100.0 ;
    const double resort_rate = 10.0 ;
    const double tax_rate = 0.085 ;
    const double deposit_fraction = 0.10 ;

    const double room_charge = ndays * room_rate ;
    const double total_resort_fee = ndays * resort_rate ;
    double total_charges = room_charge + total_resort_fee;
    const double deposit = total_charges * deposit_fraction ;

    const double resort_tax = tax_rate * total_charges ;
    total_charges += resort_tax ; // *** add tax to total charges ***

    const double due_at_arrival = total_charges - deposit ;

    std::cout << "\nLength of stay = " << ndays << " days"
              << "\nDaily rate =  $" << room_rate
              << "\nDaily Resort Fee =  $" << resort_rate
              << "\nResort Tax Rate = " << tax_rate << '\n' ;


    std::cout << "\nItemized Bill:"
              << "\nTotal Room Charge = $" << room_charge
              << "\nTotal Resort Fee = $" << total_resort_fee
              << "\nTotal Resort Tax = " << resort_tax
              << "\nTotal Bill = $" << total_charges
              << "\nTotal deposit = $" << deposit
              << "\nAmount due at arrival = $" << due_at_arrival << '\n' ;
}

[SiliconPatriot]

Thank you.