The POS register 20 receives a withdrawal amount of cash to be withdrawn (S1), and transmits a withdrawal possibility determination request to a change machine 30 (S2a). The change machine 30 determines whether withdrawal is possible, based on the withdrawal amount in the withdrawal possibility determination request, inventory quantity data, and reserved-for-change quantity data (S2b), and transmits a determination result to the POS register 20 (S2c). When the determination result is "withdrawal impossible", the POS register 20 notifies that dispensing of money is impossible. When the determination result is "withdrawal possible", cash is dispensed from the change machine 30 (S9) through notification of a settlement request amount to a debit terminal 70 (S3), reading of a debit card (S4), a settlement request to a management server 100 (S5), reception of settlement permission (S6, S7), and dispensing instruction to the change machine 30 (S8).
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