Li Ming's family is going to buy a 108m**2 house, and the unit price is 3000 yuan/m**2. If the discount is 5%, how much will it cost to buy this house?
李明家准备买一套108m**2的住房，单价是3000元/m**2，如果按九五折优惠，买这套住房要多少元？
<gadget id="calculator">95 / 100</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">3_000 * 108 * (19/20)</gadget>
<output>307_800</output>

<result>307_800</result>