It is proposed to reduce investment in equipment.
First and second point of sale (POS) terminal apparatuses (10) and (20) are connected to each other, calculate first and second payment amounts for first and second registered items, calculate first and second change based on first and second received money and the first and second payment amounts, and output first and second cash-dispensing requests for the first and second change, respectively. Receiving the first and second cash-dispensing requests from the first and second POS terminal apparatuses (10) and (20), the second POS terminal apparatus (20) outputs first and second cash-dispensing execution requests for the first and second change. A cash processing apparatus (30) connected to the second POS terminal apparatus (20) accepts the first and second received money fed by cashiers, notifies the first and second POS terminal apparatuses (10) and (20) of the amounts of the first and second received money via a cash-processing request executing unit (24), and dispenses the first and second change according to the first and second cash-dispensing execution requests from the first and second POS terminal apparatuses (10) and (20).