An engineering team wants to repair a 22,400-meter-long highway. It plans to repair 320 meters per day, but actually repairs 400 meters per day. How many days earlier than planned?
一个工程队要修一条长22400米的公路，计划每天修320米，实际每天修400米，实际比计划提前几天修完？
<gadget id="calculator">22_400 / 320</gadget>
<output>70</output>

<gadget id="calculator">22_400 / 400</gadget>
<output>56</output>

<gadget id="calculator">70 - 56</gadget>
<output>14</output>

<result>14</result>