Uncle Wang pays a personal income tax of 22.5 yuan at a rate of 5% after deducting 2,000 yuan from his monthly income. How much is Uncle Wang’s monthly income?
王叔叔每个月的收入扣除2000元后按5%的税率交了个人所得税22.5元，王叔叔的月收入是多少元？
<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">22.5 / (1/20)</gadget>
<output>450</output>

<gadget id="calculator">2_000 + 450</gadget>
<output>2_450</output>

<result>2_450</result>