A certain factory used 100 tons of coal in June. Due to the adoption of energy-saving measures, the coal consumption in July was reduced by 5 tons. How many percent is it reduced from June?
某工厂六月份用煤100吨，由于采取了节能措施，七月份用煤减少了5吨．比六月份减少了百分之几？
<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<result>1/20 = around 0.05</result>