Program to calculate sum of 5 subjects and find percentage.

			#include<stdio.h>
			#include<conio.h>
			void main()
			{
			int s1,s2,s3,s4,s5,sum,total=500;
			float per;
			clrscr();
			printf("enter marks of 5 subjects:");
			scanf("%d%d%d%d%d",&s1,&s2,&s3,&s4,&s5);
			sum=s1+s2+s3+s4+s5;
			printf("sum=%d",sum);
			per=(sum*100)/total;
			printf("percentage=%f",per);
			getch();
			}
Output:
enter marks of 5 subjects: 60
65
50
60
60
sum=300
percentage=60.000