Uncle Wang’s family is going to buy a house of 108 square meters. The unit price is 2800 yuan/square meter. If the discount is 50%, how much will it cost to buy this house?
王叔叔家准备买一套108㎡的住房，单价是2800元/㎡，如果按九五折优惠，买这套住房需要付多少元．
<gadget id="calculator">95 / 100</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">2_800 * 108 * (19/20)</gadget>
<output>287_280</output>

<result>287_280</result>