Ключевые слова: account, accounting, background, balance, bank, banking, banknote, bill, budget, business, buy, calculate, calculation, calculator, cash, coin, concept, cost, credit, currency, debt, economy, euro, europe, european, exchange, finance, financial, income, investment, loan, market, money, note, paper, pay, payment, pen, pln, poland, polish, price, profit, rich, saving, stock, success, tax, wealth, zloty,