A garment factory makes 50 sets of children's clothing, 48.5 meters of fabric are used to make the jacket, and 32.4 meters of fabric are used to make the trousers. On average, how much more fabric is used for each jacket than for each pair of trousers?
服装厂做50套童装，做上衣用去48.5米布料，做裤子用去32.4米布料，平均每件上衣比每条裤子多用多少米布料？
<gadget id="calculator">48.5 - 32.4</gadget>
<output>16.1</output>

<gadget id="calculator">16.1 / 50</gadget>
<output>0.322</output>

<result>0.322</result>