The environmentally friendly restaurant used 800 kwh of electricity last month, which is 12.5% less than last month. How many kWh do you use this month?
环保酒家上个月用电800千瓦时，这个月比上个月节约了12.5%．这个月用电多少千瓦时？
<gadget id="calculator">12.5 / 100</gadget>
<output>0.125</output>

<gadget id="calculator">1 - 0.125</gadget>
<output>0.875</output>

<gadget id="calculator">800 * 0.875</gadget>
<output>700</output>

<result>700</result>