Coal burning in April was 92% of that in March. How much was saved in coal burning in April compared with March?
四月份烧煤是三月份的92%，四月份烧煤比三月份节约了多少．
<gadget id="calculator">92 / 100</gadget>
<output>23/25 = around 0.92</output>

<gadget id="calculator">1 - (23/25)</gadget>
<output>2/25 = around 0.08</output>

<result>2/25 = around 0.08</result>