A store buys 1000 watermelons. Some of the watermelons were broken during transportation, and after the unbroken watermelons were sold out, the profit margin was 40%; the watermelons with cracks could only be sold at a reduced price, resulting in a loss of 60%. At the final settlement, it was found that the total profit was 32%. How many watermelons were broken?
某商店购进西瓜1000个．运输途中破裂一些，未破裂的西瓜卖完后，利润率为40%；碰裂的西瓜只能降价出售，亏了60%．最后结算时发现，总利润为32%，碰裂了多少个西瓜？
<gadget id="calculator">140 / 100</gadget>
<output>7/5 = around 1.4</output>

<gadget id="calculator">1_000 * (7/5)</gadget>
<output>1_400</output>

<gadget id="calculator">1_400 - 1_000 - 320</gadget>
<output>80</output>

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

<gadget id="calculator">(7/5) - 1</gadget>
<output>2/5 = around 0.4</output>

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

<gadget id="calculator">80 / 1</gadget>
<output>80</output>

<result>80</result>