Production of a batch of parts, has produced 1200. If the task is completed by producing 300 more, what percentage has been produced?
生产一批零件，已经生产了1200个．如果再生产300个就完成任务了，已经生产了百分之几？
<gadget id="calculator">1_200 + 300</gadget>
<output>1_500</output>

<gadget id="calculator">1_200 / 1_500</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>