The total number of students in Yucai Primary School this year is 125% of the total number of students last year. How much has the total number of students this year increased compared to last year?
育才小学今年的学生总人数是去年学生总人数的125%，今年的学生总人数比去年增加了多少．
<gadget id="calculator">125 / 100</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">(5/4) - 1</gadget>
<output>1/4 = around 0.25</output>

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