#include <iostream>
#include <iomanip>
using namespace std;

void salesAverage(double *arr, int size);
void salesTotal(double *arr, int size);

int main () {

    int counter = 1;

    cout << "Please input the amount of monthly sales you have. " << endl;
    int size = 0;
    cin >> size;
    double *arr = new double[size];
    for (int sales = 0; sales < size; sales++) {

           cout << "Please input the sales for month " << counter++ << endl;
            cin >> arr[sales];
        }

        salesTotal(arr, size);
        salesAverage(arr, size);


return 0;
}


void salesAverage(double *arr, int size) {


        int sales = 0;
        double total = 0;
        double average = 0;
            while (sales < size) {
                total = total + arr[sales];
                sales++;
            }
            average = (double) total / (double) size;
            cout << setprecision(2) << fixed << "Your average monthly sale is $" << average << endl;

}

void salesTotal(double *arr, int size){

        double sum = 0;
        for (int sales = 0; sales < size; sales++) {
                sum = sum + arr[sales];
                }
                    cout << setprecision(2) << fixed << "Your sum of monthly sales is $" << sum << endl;

}