Xiaohong reads a "Fairy Tale Novels", reads 90 pages, and leaves 30 pages unread, how many percent more pages have been read than the remaining pages?
小红看一本《童话小说》，看了90页，还剩30页没有看，已看的页数比剩下的页数多百分之几？
<gadget id="calculator">90 - 30</gadget>
<output>60</output>

<gadget id="calculator">60 / 30</gadget>
<output>2</output>

<result>2</result>