On July 1, 2004, Xiao Wang deposited RMB 5,000 in the bank for a period of two years, with an annual interest rate of 2.25%. The state stipulates that the interest income tax should be paid at 20% of the deposit interest. Please calculate for Xiao Wang, when he withdraws money on July 1, 2006, how much will Xiao Wang be able to withdraw the principal and after-tax interest in total?
2004年7月1日，小王将5000元人民币存入银行，定期二年，年利率2.25%，国家规定，按存款利息的20%交纳利息所得税．请你为小王计算一下，到2006年7月1日取钱时，小王能取出本金和税后利息一共多少元？
<gadget id="calculator">2.25 / 100</gadget>
<output>0.0225</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">5_000 * 0.0225 * 2 * (4/5)</gadget>
<output>180</output>

<gadget id="calculator">5_000 + 180</gadget>
<output>5_180</output>

<result>5_180</result>