Yucai Primary School held the "My Chinese Dream" essay collection activity, in which 150 manuscripts were collected for the fifth grade, and 180 manuscripts were collected for the sixth grade. How many percent more manuscripts were collected for the sixth grade than for the fifth grade?
育才小学举办"我的中国梦"征文活动，其中五年级征集稿件150份，六年级征集稿件180份，六年级征集稿件的份数比五年级多百分之几？
<gadget id="calculator">180 - 150</gadget>
<output>30</output>

<gadget id="calculator">30 / 150</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>