The cement plant originally planned to produce 871,500 tons of cement for the whole year. As a result, it produced 454,200 tons in the first half of the year and 473,600 tons in the second half of the year. How many tons did this year's production exceed the plan?
水泥厂原计划全年生产水泥87.15万吨，结果上半年生产45.42万吨，下半年生产47.36万吨，今年生产超过计划多少万吨？
<gadget id="calculator">47.36 - 87.15</gadget>
<output>-39.79</output>

<gadget id="calculator">45.42 + (-39.79)</gadget>
<output>5.63</output>

<result>5.63</result>