double payment;
double changeDue;					//calculating the change
changeDue = payment - SubTotal;		//the formular for change
char ch = 'y' && 'n';
string usrName;
int newReceipt, count, receiptNum = 1;
double ToTl;
double RcRe;
double def;
double ToTa;

setprecision(2);

//the programme initialisatio structure
do{
//	int login = usrName;
	cout<<"This programmeis a trial version of receipt cashier\n";
	cout<<"Please login\n";
	cout<<"Enter User Name :";
	cin>>usrName;
	cout<<"You are logged in as:"<<usrName<<endl;
//code for receipt here!!
		do{
			//request fresh receipt after major transaction
			cout<<"\t\t\t\t\t\t"<<usrName<<endl;
			do {
				
				cout<<"Begin a new receipt : [y/n]";
				cin>>ch;
				if(ch == 'y') {
					cout<<"Successful!"<<endl;
				}
				else if(ch == 'n') {
					cout<<"Try Again!"<<endl;
				}
				else if (ch != 'y' && ch != 'n')
				{
					cout<<"Good Bye!"<<endl;
				}
			}while(ch != 'y');
			//Receipt procedure
		do{
			
			do{
				cout<<"\n###########################################################################"<<endl;
				cout<<"Receipt no.:"<<receiptNum++<<endl;
				do{						
					cout<<"Enter 0 to exit receipt";
					cout<<"\nPlease enter item cost :";
					cin>>itemCost;
					SalesTax = CalcSalesTax(itemCost, TAX);
					cout<<"Sales Tax is :"<<fixed<<showpoint<<setprecision(2)<<SalesTax << endl;
					count =count + 1;
					subTotal = itemCost + SalesTax;
					cout<<"Sub Total :"<<fixed<<showpoint<<setprecision(2)<<subTotal<<endl;
					SubTotal = SubTotal + subTotal;
					cout<<SubTotal<<showpoint<<setprecision<<endl;
				}while(itemCost != 0);
				cout<<"\n-----------------------------------------------------"<<endl;
					do {
						cout<<"The total is :"<<fixed<<showpoint<<setprecision(2)<<SubTotal<<endl;
						cout<<"Payment :";
						cin>>payment;
						if (payment < SubTotal) {
							cout<<"Insufficient Funds!!"<<endl;
						}
						}while(payment < SubTotal);
					changeDue = payment - SubTotal;
					cout<<"\nChange is :"<<fixed<<showpoint<<setprecision(2)<<changeDue<<endl;
					cout<<"Thank you for your purchase.\nPlease call again\nMudFam.org is happy to be associated with you."<<endl;
				}while(itemCost != 0);
				SubTotal =0;
				cout<<"Continue receipting..! [y/n]";
				cin>>ch;
				if(ch != 'y'){
						cout<<"Thank you ..:"<<usrName<<"\nCall again!"<<endl;
					}	
			}while(ch != 'n');
						
		}while(ch != 'y' && ch != 'n');
		ToTl = ++SubTotal;
		cout<<"Total of all receipted revenue for the day : "<<fixed<<showpoint<<setprecision(2)<<++ToTl<<endl;
		cin>>RcRe;
		def = RcRe - ToTa;
		cout<<"Deficit"<<fixed<<showpoint<<setprecision(2)<<def<<endl;
		ToTa = ToTl- def;
		cout<<"The diffference is:"<<fixed<<showpoint<<setprecision(2)<<ToTa<<endl;
	
//Some chunk of code on top	
	cout<<"Do you want exit this program? [y/n]"<<endl;
	cin>>ch;
	if(ch != 'n'){
		cout<<"Thank you for using this program!\nCall again!"<<endl;
	}