The rainbow brand clothing store buys a batch of new suits from the clothing factory and prices them at a profit margin of 30%. When 80% of the suits were sold, the manufacturer released another suit. In order to promote sales, the clothing store sells the remaining suits at a discount of 15% of the price. After the suits are sold out, what percentage of the expected profit will the clothing store actually earn?
彩虹品牌服装店，从服装厂购进一批新款西服，按30%的利润率来定价．当售出这批西服的80%后，厂家又椎出了另一款西服．为了促销，服装店将剩下的西服按定价打八五折出售，问卖完以后，服装店实际获得的利润是期望利润的百分之几？
<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">1 + (3/10)</gadget>
<output>13/10 = around 1.3</output>

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(13/10) * (4/5)</gadget>
<output>26/25 = around 1.04</output>

<gadget id="calculator">1 - (4/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">130 / 100</gadget>
<output>13/10 = around 1.3</output>

<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">(13/10) * (17/20)</gadget>
<output>221/200 = around 1.105</output>

<gadget id="calculator">(1/5) * (221/200)</gadget>
<output>221/1_000 = around 0.221</output>

<gadget id="calculator">(221/1_000) - 1</gadget>
<output>-779/1_000 = around -0.779</output>

<gadget id="calculator">(26/25) + (-779/1_000)</gadget>
<output>261/1_000 = around 0.261</output>

<gadget id="calculator">(261/1_000) / (3/10)</gadget>
<output>87/100 = around 0.87</output>

<result>87/100 = around 0.87</result>