Xiao Ming deposits 1,000 yuan in the bank for 3 years on a regular basis with an annual interest rate of 5.4%. When the maturity expires, he can get the total amount of the principal and after-tax (interest tax is 5%) interest.
小明把1000元存入银行，定期3年，年利率是5.4%，到期时他可获得本金和税后(利息税为5%)利息共多少元．
<gadget id="calculator">5.4 / 100</gadget>
<output>0.054</output>

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

<gadget id="calculator">1 - (1/20)</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">1_000 * 0.054 * 3 * (19/20)</gadget>
<output>153.9</output>

<gadget id="calculator">1_000 + 153.9</gadget>
<output>1_153.9</output>

<result>1_153.9</result>