Manager Zhang entrusted the transportation team to transport 1,000 vases. It was agreed that the shipping fee for each vase would be 0.40 yuan. ?
张经理委托运输队包运1000只花瓶，议定每只花瓶运费0.40元，如果损坏一只，不但不给运费，而且还要每只赔偿5.10元，结果运输队得运费383.50元，损坏花瓶多少只？
<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>