The original price of a commodity is 80 yuan. After the price is reduced by 5%, what is the current price?
一件商品原价是80元，降价5%后，现价是多少元．
<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">80 * (1/20)</gadget>
<output>4</output>

<gadget id="calculator">80 - 4</gadget>
<output>76</output>

<result>76</result>