A transportation team transports 500 boxes of thermos bottles for a store, 6 pieces in each box, and it is known that the shipping fee for every 10 pieces of thermos bottles is 5.5 yuan. If a thermos bottle is damaged, the compensation cost is 11.5 yuan. As a result, the transportation team received a total of 1553.6 yuan. Ask how many thermos bottles were damaged?
某运输队为商店运输暖水瓶500箱，每箱6个，已知每10个暖瓶的运费是5.5元．如果损坏一个暖水瓶，要赔偿成本11.5元．结果运输队共得到1553.6元．问共损坏多少个暖水瓶？
<gadget id="calculator">500 * 6</gadget>
<output>3_000</output>

<gadget id="calculator">5.5 / 10</gadget>
<output>0.55</output>

<gadget id="calculator">3_000 * 0.55</gadget>
<output>1_650</output>

<gadget id="calculator">1_650 - 1_553.6</gadget>
<output>96.4</output>

<gadget id="calculator">11.5 + 0.55</gadget>
<output>12.05</output>

<gadget id="calculator">96.4 / 12.05</gadget>
<output>8</output>

<result>8</result>