A professional grain producer produced 80 tons of wheat last year and 110 tons of wheat this year. What percentage is the increase this year compared to last year?
某粮食生产专业户，去年产小麦80吨，今年产小麦110吨，今年比去年增产百分之几？
<gadget id="calculator">110 - 80</gadget>
<output>30</output>

<gadget id="calculator">30 / 80</gadget>
<output>3/8 = around 0.375</output>

<result>3/8 = around 0.375</result>