The school has 12 classes graduating this year, with a total of 600 students. It is expected to recruit 10 classes of first-year students this year, with an average of 45 students per class. The number of first-year students this year is a few percent less than the number of graduates.
学校今年毕业的有12个班，共计600人，预计今年新招一年级新生10个班，平均每班45人，今年一年级新生人数比毕业生人数少百分之几．
<gadget id="calculator">45 * 10</gadget>
<output>450</output>

<gadget id="calculator">600 - 450</gadget>
<output>150</output>

<gadget id="calculator">150 / 600</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>