Electric Bill in C++

#include <iostream>
using namespace std;
int main()
{
    float cmr , pmr , kp , discount;
    int type;
    again:
    cout<<"Enter the current meter reading in kilowatt"<<endl;
    cin>>cmr;
    cout<<"Enter the previous meter reading in kilowatt"<<endl;
    cin>>pmr;
    cout<<"Choose the type of meter by entering 1 or 2"<<endl<<"1.home   2.commercial"<<endl;
    cin>>type;
    if(cmr>pmr&&(type==1||type==2))
    {
        cout<<endl<<"Kilowatt Consumption = "<<cmr-pmr<<endl;
        if(type==1)
        {
            kp=0.5;
        }
        else if(type==2)
        {
            kp=0.6;
        }
        cout<<"Kilowatt Price = "<<kp<<" $"<<endl;
        cout<<"Consumption Cost = "<<kp*(cmr-pmr)<<" $"<<endl;
        cout<<"Value Added Tax (VAT) = "<<kp*(cmr-pmr)*14/100<<" $"<<endl;
        if(type==1)
        {
            if((cmr-pmr)<200)
            {
                discount=kp*(cmr-pmr)*10/100;
            }
            else if((cmr-pmr)>=200)
            {
                discount=kp*(cmr-pmr)*15/100;
            }
        }
        else if(type==2)
        {
            if((cmr-pmr)<400)
            {
                discount=kp*(cmr-pmr)*15/100;
            }
            else if((cmr-pmr)>=400)
            {
                discount=kp*(cmr-pmr)*20/100;
            }
        }
        cout<<"Discount Amount = "<<discount<<" $"<<endl;
        cout<<"Net Total = "<<(kp*(cmr-pmr))+(kp*(cmr-pmr)*14/100)-discount<<" $"<<endl;
    }
    else
    {
        cout<<"There is an error , Try again..."<<endl<<endl;
        goto again;
    }
}