#include <stdio.h>  // standard input output library
 
//defines tax value for calculations
#define DelMar 7.25
#define Encinitas 7.5
#define LaJolla 7.75
 
char cAgain;  //variable for Y/N questions
 
int displayMenu()  //defines menu variable
{ // menu 
    int selection; //defines selection variable
    printf("Tax Calculation for $125 Purchase\n\n");
    printf("1. Del Mar \n");
    printf("2. Encinitas \n");
    printf("3. La Jolla \n");
    printf("\n\nPlease Select Store for Which to Calculate [1-3]:");
 
    scanf("%d",&selection);
    return selection;
}
 
int main() //main loop
{
YES://start again point
{				
 
    float sales = 125.00; // Sales value for calculations
    int store; //defines store for main loop, menu will not work without
 
    store = displayMenu(); //displays menu created above
 
    if (store == 1)
//Calculates and Displays Del Mar Store, Sales, Tax rate, and Tax
        printf("\nDel Mar \tSale $%.2f\tRate %.2f%%\tTax $%.2f%\t\n\n",sales, DelMar, sales*DelMar/100); //values are correct so I am leaving it this way. ahead of schedule here.
    if (store == 2)
//Calculates and Displays Encinitas Store, Sales, Tax rate, and Tax
        printf("\nEncinitas \tSale $%.2f\tRate %.2f%%\tTax $%.2f%\t\n\n",sales, Encinitas, sales*Encinitas/100);
    if (store == 3)
 //Calculates and Displays La Jolla Store, Sales, Tax rate, and Tax
        printf("\nLa Jolla \tSale $%.2f\tTax %.2f%%\tTax $%.2f%\t\n\n",sales, LaJolla, sales*LaJolla/100);
 
    if (store <1 || store >3) //if store number is not 1, 2 or 3
    {
    	printf("\nPlease enter 1,2 or 3\n");
 
    	printf("\n\tINVALID NUMBER ENTERED! Would you like to try again? (y/n) ");//allows retry 
          scanf("%c", &cAgain);  //scans input at INVALID prompt 
 
               if (cAgain == 'y' || cAgain == 'Y')//repeats calculator
               {
               goto YES;  //back to top
               }
               else if (cAgain == 'n' || cAgain == 'N')//end
 
    return 0;  
    } 
 
 
    printf("\n\tWould you like to calculate for another store? (y/n) ");//prompts for repeat
            scanf("%c", &cAgain);//scans input at store number prompt   
 
               if (cAgain == 'y'|| cAgain == 'Y')//repeats calculator
               {
               goto YES;  //back to top
               }
               else if (cAgain == 'n' || cAgain == 'N')//end
 
   return 0;
}
}