I am making a program to compute simple interest. P*R/100

this is what i have done... Please tell me whats wrong

```
int main()
{
int p,n,count;
float r,si;
count=1;
while(count<=3)
{
printf("\n enter values of p,n,andr");
scanf("%d %d %f",&p, &n, &r);
si=(float)p * (float)n * r / 100;
printf("simple interest =rs. %f",si);
count=count+1;
}
return(0);
}
```