Program Kasir dengan C++

SCRIPT PROGRAM KASIR SEDERHANA

//Menghitung Total Pembayaran//
#include<iostream.h>
#include<conio.h>

void main()
{
clrscr();
float tot_beli,diskon,pajak,bayar,uang;
char lagi;
lagi ='y';
while (lagi=='y')
{
cout<<"=============================================================================="<<endl;
cout<<"                TOTAL PEMBAYARAN PRODUK"<<endl;
cout<<"                    MITRA-MARKET KEDIRI"<<endl;
cout<<"=============================================================================="<<endl;
cout<<""<<endl;
cout<<"Total Pembelian            =        $";
cin>>tot_beli;

if (tot_beli<100)
{
pajak=0.08*tot_beli;
diskon=0*(tot_beli-pajak);
bayar=(tot_beli+pajak)-diskon;
}

else if (tot_beli>=100 && tot_beli<=500)
{
pajak=0.075*tot_beli;
diskon=0*(tot_beli-pajak);
bayar=(tot_beli+pajak)-diskon;
}
else if (tot_beli>500)
{
pajak=0.075*tot_beli;
diskon=0.10*(tot_beli-pajak);
bayar=(tot_beli+pajak)-diskon;
}
else
{
cout<<"TIDAK ADA DISKON"<<endl;
}

cout<<"Pajak Tertanggung        =        $"<<pajak<<endl;
cout<<"Diskon                =        $"<<diskon<<endl;
cout<<""<<endl;
cout<<"::TOTAL YANG HARUS DIBAYAR::"<<endl;
cout<<"(sudah termasuk pajak & diskon)    =        $"<<bayar<<endl;
cout<<"------------------------------------------------------------------------------"<<endl;
cout<<"Uang Yang Dibayarkan        =        $";
cin>>uang;
cout<<"Kembalian            =        $"<<(uang-bayar)<<endl;
cout<<""<<endl;
cout<<""<<endl;
cout<<"          TERIMA KASIH ATAS KUNJUNGAN & BELANJA ANDA"<<endl;
cout<<"------------------------------------------------------------------------------"<<endl;
cout<<""<<endl;
cout<<""<<endl;
cout<<"TRANSAKSI LAGI? (y/t)"<<endl;
cin>>lagi;
}
getch();
}