def calc_income_by_time_in_euro(worked_time, hourly_wage_in_euro):
    sales_tax_percent = 0.19
    brutto_income_in_euro = worked_time*(hourly_wage_in_euro/60)
    sales_tax = sales_tax_percent*brutto_income_in_euro
    netto_income_in_euro= brutto_income_in_euro- sales_tax
    return netto_income_in_euro, sales_tax