department store entrusts a transportation team to transport 1,000 vases, and agrees that the shipping fee for each vase is 0.4 yuan. If a vase is damaged, not only will the shipping fee not be paid, but the loss will also be compensated for 5.1 yuan. After the delivery, the transportation team will get a shipping fee of 383.5 yuan. Ask: How many vases were damaged?
某百货商店委托运输队包运1000只花瓶，议定每只花瓶运费0.4元，如果损坏一只，不但不给运费，而且还要赔偿损失5.1元，运到后运输队获得运费383.5元，问：损坏了多少只花瓶？
<gadget id="calculator">1_000 * 0.4</gadget>
<output>400</output>

<gadget id="calculator">400 - 383.5</gadget>
<output>16.5</output>

<gadget id="calculator">0.4 + 5.1</gadget>
<output>5.5</output>

<gadget id="calculator">16.5 / 5.5</gadget>
<output>3</output>

<result>3</result>