The output in October is 1/8 lower than that in September. The output in September is 720 tons. What is the output in October?
十月份的产量比九月份的产量减少了(1/8)，九月份产量是720吨，十月份的产量是多少吨．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 - (1/8)</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">720 * (7/8)</gadget>
<output>630</output>

<result>630</result>