Xiaoming's family bought an ordinary house, the total price of which was 500,000 yuan, if the house payment was paid off in one lump sum, they could enjoy a 40% discount, and they also had to pay a deed tax of 1.5% of the actual house price. If Xiaoming's family pays in one lump sum, how much is the deed tax payable?
小明家买一套普通住房，房子的总价为50万元，如果一次性付清房款，享受九六折优惠，买房还要缴纳实际房价1.5%的契税．如果小明家一次性付款，则应付契税多少元？
<gadget id="calculator">1.5 / 100</gadget>
<output>0.015</output>

<gadget id="calculator">48 * 0.015</gadget>
<output>0.72</output>

<gadget id="calculator">0.72 * 10_000</gadget>
<output>7_200</output>

<result>7_200</result>