The toy factory produces a batch of 4,800 toys. It is planned to be completed in 15 days, but it is actually completed in 12 days. How many more pieces are actually produced per day than planned?
玩具厂生产一批玩具4800件，计划15天完成，实际12天就完成，实际每天比计划每天多生产多少件？
<gadget id="calculator">4_800 / 12</gadget>
<output>400</output>

<gadget id="calculator">4_800 / 15</gadget>
<output>320</output>

<gadget id="calculator">400 - 320</gadget>
<output>80</output>

<result>80</result>