write a c program to calculate percentage of marks obtained by a student

	#include <stdio.h>
	int main()
	{
    int cLan, data_structures, operating_system, software_engineering, computer_organisation;
    float total, average, percentage;

    /* Input marks of all five subjects */
    printf("Enter marks of five subjects: n");
    printf("Enter marks of C language: n");
    scanf("%d", &cLan);
    
    printf("Enter marks of data structures n");
    scanf("%d", &data_structures);
    
    printf("Enter marks of operating system n");
    scanf("%d", &operating_system);
    
    printf("Enter marks of software engineering n");
    scanf("%d", &software_engineering);
    
    printf("Enter marks of computer architecture and organisation n");
    scanf("%d", &computer_organisation);
    

    /* Calculate total, average and percentage */
    total = cLan + data_structures + operating_system + software_engineering + computer_organisation;
    average = total / 5.0;
    percentage = (total / 500.0) * 100;

    /* Print all results */
    printf("Total marks = %.2fn", total);
    printf("Average marks = %.2fn", average);
    printf("Percentage = %.2f", percentage);
    return 0;
	getch();
	}