restaurant has a turnover of 287,500 yuan this month, and pays sales tax at 5% of the turnover. What is the after-tax turnover of this restaurant?
一家饭店本月营业额为28.75万元，按营业额的5%缴纳营业税，这家饭店税后营业额是多少万元．
<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">28.75 * (19/20)</gadget>
<output>27.3125</output>

<result>27.3125</result>