The Dongfang Machinery Factory is going to produce a batch of machine tools, and has already produced 425 machines. In the future, if 2 more units are produced every day than before, it will take 40 days to complete, but 5 units can be produced less on the last day. If the original work efficiency is followed, it is necessary to work for 3 more days. How many machine tools will Dongfang Machinery Factory produce in total?
东方机械厂要生产一批机床，已经生产了425台．以后，如果每天比原来多生产2台，还需要40天完成，但最后一天可少生产5台．如果按照原来的工作效率，就要再多工作3天．东方机械厂一共要生产多少台机床？
<gadget id="calculator">2 * 40</gadget>
<output>80</output>

<gadget id="calculator">80 - 5</gadget>
<output>75</output>

<gadget id="calculator">75 / 3</gadget>
<output>25</output>

<gadget id="calculator">40 + 3</gadget>
<output>43</output>

<gadget id="calculator">25 * 43</gadget>
<output>1_075</output>

<gadget id="calculator">1_075 + 425</gadget>
<output>1_500</output>

<result>1_500</result>