Hongxing Cement Plant planned to produce 160,000 tons of cement last year, but actually produced 86,000 tons in the first half of the year and 98,000 tons in the second half of the year. What percentage was exceeded?
红星水泥厂去年计划生产水泥16万吨，实际上半年生产8.6万吨，下半年生产9.8万吨，超额完成百分之几？
<gadget id="calculator">9.8 - 16</gadget>
<output>-6.2</output>

<gadget id="calculator">8.6 + (-6.2)</gadget>
<output>2.4</output>

<gadget id="calculator">2.4 / 16</gadget>
<output>0.15</output>

<result>0.15</result>