Uncle Li bought 230 kilograms of lychees at wholesale price and sold them all at retail price. If the wholesale price is 6.50 yuan per kilogram and the retail price is 8.70 yuan per kilogram, how much money can Uncle Li make?
李叔叔以批发价购进230千克荔枝，全部以零售价出售．若批发价每千克6.50元，零售价每千克8.70元，李叔叔能赚多少钱？
<gadget id="calculator">8.7 - 6.5</gadget>
<output>2.2</output>

<gadget id="calculator">2.2 * 230</gadget>
<output>506</output>

<result>506</result>