The average turnover of a hotel in the first 6 days is 12,000 yuan. After opening on Sunday, the average turnover is 13,000 yuan. What is the hotel’s turnover on Sunday?
某酒店前6天平均营业额为12000元，周日营业后，平均营业额为13000元，酒店周日的营业额是多少元．
<gadget id="calculator">13_000 * 7</gadget>
<output>91_000</output>

<gadget id="calculator">12_000 * 6</gadget>
<output>72_000</output>

<gadget id="calculator">91_000 - 72_000</gadget>
<output>19_000</output>

<result>19_000</result>