All products in the mall will be sold at a 20% discount. Buy a basketball, the original price is 85 yuan, how much is the discounted price?
商场里的商品一律打八折销售．购买一个篮球，原价是85元，打折后的价格是多少元．
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">85 * (4/5)</gadget>
<output>68</output>

<result>68</result>