Master Wang is processing a batch of parts. He plans to process 320 parts per day and finish it in a week. Now he needs to finish it 2 days ahead of schedule. How many parts does he need to process on average every day?
王师傅加工一批零件，计划每天加工320个，一个星期完成，现在要提前2天完成，平均每天要加工多少个零件？
<gadget id="calculator">7 - 2</gadget>
<output>5</output>

<gadget id="calculator">7 / 5</gadget>
<output>7/5 = around 1.4</output>

<gadget id="calculator">320 * (7/5)</gadget>
<output>448</output>

<result>448</result>