In this case, the New Zealand dollar is the base currency, the US dollar is the quote currency. So, to buy one NZD you need 0.6365 USD.
ຈາກຕົວຢ່າງນີ້ New Zealand Dollar ແມ່ນ base ແລະ US Dollar ແມ່ນ quote ດັ່ງນັ້ນ ຖ້າຊື້ໜື່ງ NZD ຈະຕ້ອງໃຊ້ 0.6365 USD