Aunt Wang’s monthly salary is 1,800 yuan. According to the personal income tax regulations, the balance of 800 yuan is deducted from monthly salary income, and personal income tax is paid at a rate of 5%. How much personal income tax does Aunt Wang have to pay a year?
王阿姨月工资是1800元，按照个人所得税的规定，每月工资收入扣除800元的余额部分，按5%的比例缴纳个人所得税，王阿姨一年要缴纳个人所得税多少元？
<gadget id="calculator">1_800 - 800</gadget>
<output>1_000</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1_000 * (1/20) * 12</gadget>
<output>600</output>

<result>600</result>