The power plant used 175 tons of coal in February, which was 25 tons less than in January. What percentage was the saving compared to January?
发电厂2月份用煤175吨，比一月份节约了25吨，比一月节约了百分之几？
<gadget id="calculator">175 + 25</gadget>
<output>200</output>

<gadget id="calculator">25 / 200</gadget>
<output>1/8 = around 0.125</output>

<result>1/8 = around 0.125</result>