It costs 160 yuan to sell a piece of women's clothing with a 20% discount. If it is sold with a 30% discount, how much will it cost?
一件女衣打八折出售需要160元，如果打七折出售，只需要多少元？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">160 / (4/5)</gadget>
<output>200</output>

<gadget id="calculator">70 / 100</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">200 * (7/10)</gadget>
<output>140</output>

<result>140</result>