There are 400 pear trees and 500 peach trees in the orchard. How many percent more peach trees are there than pear trees?
果园里有梨树400棵，桃树500棵，桃树的棵数比梨树多百分之几？
<gadget id="calculator">500 - 400</gadget>
<output>100</output>

<gadget id="calculator">100 / 400</gadget>
<output>1/4 = around 0.25</output>

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