Find simple interest in C++ by R4R Team

Here we try to find the simple interest when we have a principle, rate of interest, and time.
S.I=(principle*rate*time)/100

program:

#include< iostream>
class r4r
{
int p,r,t;
public:
int get_data()
{
cout<<"Enter principle"<< endl;
cin>>p;
cout<<"Enter rate"<< endl;
cin>>r;
cout<<"Enter time"<< endl;
cin>>t;
}
int find_SI()
{
float simple_int;
simple_int=(p*r*t)/100;
cout<<"Simple interest is "<< simple_int<< endl;
}
};
int main() {
r4r obj;
obj.get_data();
obj.find_SI();
}

Enter principle
1000
Enter rate
10
Enter time
3
300.000000