The price of a piece of clothing is 230 yuan, and it can still make a profit of 15% if it is sold at a 20% discount. How much is the purchase price of this dress?
一件衣服的售价是230元，以八折售出仍可盈利15%．这件衣服的进价是多少元？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 + (3/20)</gadget>
<output>23/20 = around 1.15</output>

<gadget id="calculator">(4/5) / (23/20)</gadget>
<output>16/23 = around 0.695652</output>

<gadget id="calculator">230 * (16/23)</gadget>
<output>160</output>

<result>160</result>