Find out the aggregate marks and percentage marks obtained by the student ~ C Programming

If the marks obtained by a student are input through the keyboard find out the aggregate marks and percentage marks obtained by the student. Assume that the maximum marks that can be obtained by a student in each subject is 100.

/*
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File Name : StudentMarks.c
WebSite : http://programming-c-lang.blogspot.in/
Facebook : https://www.facebook.com/ProgrammingInCLanguage
Twitter ID : https://twitter.com/CProgramingLang
Created By : Bintu Chaudhary
===========================================================
*/
#include<stdio.h>
#include<conio.h>
void main()
{
 int em,pm,hm,mm,sm,tm;
 float per;
 clrscr();
 printf("\n\t===========================");
 printf("\n\tStudent Details Marks");
 printf("\n\t===========================");
 printf("\n\tEnglish Marks\t:\t");
 scanf("%d",&em);

 printf("\n\tPunjabi Marks\t:\t");
 scanf("%d",&pm);

 printf("\n\tHindi Marks\t:\t");
 scanf("%d",&hm);

 printf("\n\tMath Marks\t:\t");
 scanf("%d",&mm);

 printf("\n\tScience Marks\t:\t");
 scanf("%d",&sm);

 tm = em+pm+hm+mm+sm;

 per = tm*100.0/500;

 printf("\n\n\tPercentage\t:\t%f",per);
 getch();
}

Output