Numeric Argument and Calculate its Sum

#include<stdio.h>

#include<conio.h>

#include<ctype.h>

void main(int argc,char *argv[])

 {

    int i,no,s=0;

    float avg;

    clrscr();

    printf("\n Total argument : %d",argc);

    printf("\n file name = %s ",argv[0]);

    for(i=1;i<argc;i++)

     {

          // Convert string to number

          no=atoi(argv[i]);

          printf("\n no = %d ",no);

          s=s+no;

     }

    avg=s/argc;

     printf("\n Sum = %d",s);

    printf("\n average = %f",avg);

    getch();

 }