For a manuscript, after the typist Xiao Li typed 75% of the total number of words, there are still 500 words left. How many words are there in this manuscript?
一份稿件，打字员小李打了总字数的75%后，还剩下500个字，这份稿件共有多少个字．
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">500 / (1/4)</gadget>
<output>2_000</output>

<result>2_000</result>