The school-run factory planned to create an output value of 800,000 yuan last year. The actual output value was 450,000 yuan in the first half of the year and 500,000 yuan in the second half.
校办厂去年计划创产值80万元，实际上半年创产值45万元，下半年创产值50万元，去年实际产值比计划超过百分之几？
<gadget id="calculator">45 - 80</gadget>
<output>-35</output>

<gadget id="calculator">50 + (-35)</gadget>
<output>15</output>

<gadget id="calculator">15 / 80</gadget>
<output>3/16 = around 0.1875</output>

<result>3/16 = around 0.1875</result>