The number of technology books is 12% less than the number of story books, so the number of technology books is equivalent to the number of story books
科技书的本数比故事书的本数少12%，那么科技书的本数相当于故事书本数的多少
<gadget id="calculator">12 / 100</gadget>
<output>3/25 = around 0.12</output>

<gadget id="calculator">1 - (3/25)</gadget>
<output>22/25 = around 0.88</output>

<result>22/25 = around 0.88</result>