How to make program determine largest user input

Question

So my task is to write a program that determines which of a company's four divisions had the greatest sales for a quarter. I am basically having an issue with the my cout statement not spitting out the location. Here is what I have: function prototypes:

double getSales(string const);
void findHighest(double, double, double, double);

main(cannot be touched instructors commands):

//variables
    double nwSales, neSales, swSales, seSales, highest; 
    string const NW = "Northwest",
                 NE = "Northeast",
                 SW = "Southwest", 
                 SE = "Southeast"; 

    cout << fixed << showpoint << setprecision(2);

    nwSales = getSales(NW); // these are calls to a function that returns a value
    neSales = getSales(NE);
    swSales = getSales(SW);
    seSales = getSales(SE); 
    findHighest(nwSales,neSales,swSales,seSales); 

function defintions:

double getSales(string const location)
{
    double sales;
    cout << "The " << location <<" branch had a quarterly sales figure of: $ ";
    cin >> sales;
    cout << "\n";
    while (sales < 0)
{
        cout << over3 << sales << " is not valid! Try again: "; 
        cin >> sales;
}
    return sales;
}

I'm pretty sure that one is right. Im having trouble with this section primarily:

void findHighest(double nwSales, double neSales, double swSales, double seSales)
{
system("CLS");
double highest  = nwSales;
string const location = "Northwest";

if (neSales > highest)
{
    highest = neSales;
    location = "Northeast";
}
if (swSales > highest)
{
    highest = swSales;
    location = "Soutwest";
}
if (seSales > highest)
{
    highest = seSales;
    location = "Southeast";
}
cout << down5;
cout << "The highest grossing division was " << location << "with $ " << highest;
cout << down7;

}

I cannot figure out why it won't tell me the location. I tried putting the cout statement in each if statement bu that messed up everything entirely. Hoping someone might be able to guide me in the right direction.

Answer 1

Try this

string location = "Northwest";
      ^^
      no const