Teacher Wang plans to complete the input of a manuscript within 20 days. Actually input 20,000 words every day, and completed the task 2 days ahead of schedule. How much more is the actual daily input than planned?
王老师计划20天时间完成一部书稿的输入．实际每天输入20000字，提前2天完成了任务．实际每天输入的比计划多多少？
<gadget id="calculator">20 - 2</gadget>
<output>18</output>

<gadget id="calculator">18 / 20</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">20_000 * (9/10)</gadget>
<output>18_000</output>

<gadget id="calculator">20_000 - 18_000</gadget>
<output>2_000</output>

<result>2_000</result>