A person transports 1,000 glasses, and the shipping fee for each glass is 0.5 yuan. If one is damaged, the compensation is 8 yuan. The total shipping fee for this person is 449 yuan. How many glasses were damaged during the transportation?
某人运玻璃杯1000个，每只的运费是0.5元，若破损一个须赔偿8元，此人共得运费449元，问搬运过程中破损了几只玻璃杯？
<gadget id="calculator">0.5 * 1_000</gadget>
<output>500</output>

<gadget id="calculator">500 - 449</gadget>
<output>51</output>

<gadget id="calculator">8 + 0.5</gadget>
<output>8.5</output>

<gadget id="calculator">51 / 8.5</gadget>
<output>6</output>

<result>6</result>