Program menentukan nilai tukar mata uang yen ke rupiah dengan C ++

#include cstdlib
#include iostream
#include conio.h

using namespace std;

int main(int argc, char *argv[])
{
    int ahmadYen = 0, kurs = 70;
    long ahmadRupiah = 0;
    float bunga = 0;
    cout << "Tugas Kelompok Jawaban No 3 Menentukan Nilai Tukar Mata uang yen ke rupiah"<
    cout <<"Kelompok 8"<
    cout <<"1.Ahmad Latip Haerudin" <
    cout <<"2.Reza Saputera"<
    cout <<"3.Ucup Supriatna"<
    cout <<"4.Muhammad Fahmi"<
    cout <<"\n\n\n\n==================================================================="<
    cout << "                        SELAMAT DATANG                          " << endl;
    cout << "                    PARA PENGGUNA PROGRAM INI                   " << endl;
    cout << "          PROGRAM MENGHITUNG NILAI TUKAR MATA UANG YEN KE RUPIAH" << endl;
    cout <<"===================================================================="<
 
    system("PAUSE");
    cout <<"\n\nKurs mata uang sekarang   "<
    cout << "Kurs Yen to Rupiah        : Rp."<< kurs <<",-" << endl;
    cout <<"=================================="<
    cout << "Masukkan banyak mata uang Yen yang akan ditukar dengan rupiah: ";      
    cin >> ahmadYen;
    cout << endl;
 
    if(ahmadYen > 0){
         ahmadRupiah = kurs * ahmadYen;
         bunga = 0.1 * ahmadRupiah;
       
         cout << "Berikut hasil penukarannya"<
         cout << "\nJumlah Penukaran:Rp." << ahmadRupiah << ",00" << endl;
         cout << "Bunga Penukaran :Rp.";
         printf("%.f,00\n",bunga);
         cout << "Total Penukaran :Rp.";
         printf("%.f,00\n",ahmadRupiah - bunga);
    }else{
          cout << "Masukkan tidak valid.";
    }
 
    system("PAUSE");
}

Output

Tukar mata uang yen to rupiah