A clothing store in the city center square sells a piece of clothing with an original price of 800 yuan at a 20% discount. How much is the current price?
市心广场一家服装专卖点一件原价800元的衣服，现在打8折出售，现在售价多少元？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">800 * (4/5)</gadget>
<output>640</output>

<result>640</result>