Aunt Li’s average monthly income is 1,800 yuan. If the income in September is 2,000 yuan, record it as +200 yuan, and the income in October is 1,500 yuan, which can be recorded as - how many yuan
李阿姨的月平均收入是1800元，如果9月的收入是2000元，记作+200元，10月的收入是1500元，可以记作-多少元
<gadget id="calculator">1_800 - 1_500</gadget>
<output>300</output>

<result>300</result>