A garment factory made costumes for performances. It completed 10.5% of the total last week and 12.5% of the total this week. At this time, there are still 308 pieces that have not been made yet. How many pieces of clothing are there in total?
某服装厂制作演出服装，上周完成了总数的10.5%，本周完成了总数的12.5%，这时还有308件没有做．这批服装一共有多少件？
<gadget id="calculator">12.5 / 100</gadget>
<output>0.125</output>

<gadget id="calculator">10.5 / 100</gadget>
<output>0.105</output>

<gadget id="calculator">1 - 0.125 - 0.105</gadget>
<output>0.77</output>

<gadget id="calculator">308 / 0.77</gadget>
<output>400</output>

<result>400</result>