The price of a set of suits is 680 yuan after being sold at a 15% discount. What is the original price of this suit?
一套西服按八五折出售后的价格是680元，这套西服的原价是多少元．
<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">680 / (17/20)</gadget>
<output>800</output>

<result>800</result>