Master Wang produced a batch of parts, 12.5% of the total was produced on the first day, and 90 more parts were produced, which was exactly half of the task. How many parts are there in total?
王师傅生产一批零件，第一天生产了总数的12.5%，再生产90个正好完成任务的一半．这批零件一共有多少个？
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">12.5 / 100</gadget>
<output>0.125</output>

<gadget id="calculator">(1/2) - 0.125</gadget>
<output>0.375</output>

<gadget id="calculator">90 / 0.375</gadget>
<output>240</output>

<result>240</result>