Mr. Wang bought an ordinary house. The total price of the house is 200,000 yuan. If the house payment is paid in full, there will be a 5% discount. But to buy a house, you have to pay a deed tax of 1.5% of the actual house price. How much does Mr. Wang have to pay for the deed tax when you pay off the house?
王老师买一套普通住房，房子的总价是20万元，如果一次付清房款，就有九五折的优惠价．但是买房还要缴纳实际房价1.5%的契税，王老师一次付清房款要缴契税多少元？
<gadget id="calculator">20 * 10_000</gadget>
<output>200_000</output>

<gadget id="calculator">95 / 100</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">1.5 / 100</gadget>
<output>0.015</output>

<gadget id="calculator">200_000 * (19/20) * 0.015</gadget>
<output>2_850</output>

<result>2_850</result>