#include <iostream>
#include <windows.h>
#include <iomanip>

using namespace std;

const double mwst = 0.19;

void ausgabe(double preis) {
    cout << "Artikel: " << endl;
    cout << "Netto: " << preis << " Euro" << endl;
    cout << "MwSt: " << preis * mwst << " Euro" << endl;
    cout << "Brutto: " << preis * (1 + mwst) << " Euro";
}

int main() {
    SetConsoleOutputCP(CP_UTF8);
    cout << fixed << setprecision(2);
    double preis;
    string repeat;
    do
    {
        cout << "Preis:" << endl;
        cin >> preis;

        ausgabe(preis);

        cout << endl << endl << "nochmal? (j/n)" << endl;
        cin >> repeat;
    }while (repeat == "j" || repeat == "J");


    return 0;
}