Aunt Wang bought an ordinary commercial house priced at 320,000 yuan. If you choose to pay the house in one lump sum, you can pay at a discounted price of 40%. In addition, you have to pay a deed tax of 1.5% of the actual price to buy this house. Calculate how much money Aunt Wang needs to prepare to buy this house?
王大妈买了一套售价为32万元的普通商品房．如果选择一次性付清房款可以按九六折优惠价付款，另外买这套房子还得按照实际房价的1.5%缴纳契税，算一算王大妈买下这套房子至少需要准备多少元？
<gadget id="calculator">30.72 + 0.4608</gadget>
<output>31.1808</output>

<gadget id="calculator">31.1808 * 10_000</gadget>
<output>311_808</output>

<result>311_808</result>