The glass factory entrusts the transportation company to send 10,000 vases, each costing 7.5 yuan, and the shipping fee is 4% of the cost price. If it is damaged, the shipping fee will be deducted for each piece, and 8.2 yuan will be paid for the loss. The final shipping fee is 2966 yuan. Only a vase?
玻璃厂委托运输公司送10000只花瓶，每只成本7.5元每只的运费为成本价的4%，若损坏，每只扣除运费，并赔付损失费8.2元，最后得2966元运费，损坏了几只花瓶？
<gadget id="calculator">4 / 100</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">10_000 * 7.5 * (1/25)</gadget>
<output>3_000</output>

<gadget id="calculator">3_000 - 2_966</gadget>
<output>34</output>

<gadget id="calculator">7.5 * (1/25)</gadget>
<output>0.3</output>

<gadget id="calculator">0.3 + 8.2</gadget>
<output>8.5</output>

<gadget id="calculator">34 / 8.5</gadget>
<output>4</output>

<result>4</result>