Every passenger who takes an airplane and carries more than 20 kilograms of luggage shall purchase a luggage ticket at 1.5% of the original price of the plane ticket for each kilogram. Zhang Fang takes a flight from Nanjing to Beijing, and the fare is 1010 yuan. Zhang Fang bought the ticket at a 30% discount and carried 30 kilograms of luggage. How much would she have to pay in total? try it.
乘坐飞机的每位旅客，携带行李超过20千克的部分，每千克要按飞机票价原价的1.5%购买行李票．张芳从南京乘飞机到北京，票价是1010元．张芳按七折购票并携带30千克的行李，那么她一共要付费多少元？试试看．
<gadget id="calculator">70 / 100</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">1_010 * (7/10)</gadget>
<output>707</output>

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

<gadget id="calculator">30 - 20</gadget>
<output>10</output>

<gadget id="calculator">1_010 * 0.015 * 10</gadget>
<output>151.5</output>

<gadget id="calculator">707 + 151.5</gadget>
<output>858.5</output>

<result>858.5</result>