A fruit shop bought 1,000 kilograms of apples, but some were damaged during transportation. After the undamaged apples were sold out, the profit margin was 40%. The damaged apples could only be sold at a lower price, resulting in a loss of 60%. The profit is 32%. Ask: How many kilograms of apples are damaged?
水果店购进苹果1000千克，运输途中碰坏了一些，没有碰坏的苹果卖完后，利润率为40%，碰坏的苹果只能降低出售，亏了60%，最后结算时发现总的利润为32%，问：碰坏多少千克苹果．
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">32 / 100</gadget>
<output>8/25 = around 0.32</output>

<gadget id="calculator">(2/5) - (8/25)</gadget>
<output>2/25 = around 0.08</output>

<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(2/5) + (3/5)</gadget>
<output>1</output>

<gadget id="calculator">(2/25) / 1</gadget>
<output>2/25 = around 0.08</output>

<gadget id="calculator">1_000 * (2/25)</gadget>
<output>80</output>

<result>80</result>