The annual interest rate of bank deposits is 2.5%, and the interest tax is deducted at a rate of 20%. Xiaohong has 500 yuan in New Year's money. How much is the total amount of principal and interest that can be deposited in the bank for one year?
银行存款年利率是2.5%，按20%的税率扣除利息税，小红有500元压岁钱，存入银行一年可获本息共多少元？
<gadget id="calculator">2.5 / 100</gadget>
<output>0.025</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">500 * 0.025 * 1 * (4/5)</gadget>
<output>10</output>

<gadget id="calculator">10 + 500</gadget>
<output>510</output>

<result>510</result>