A team of 1,000 tons of cement uses 30% of the total on the first day and all (3/8) on the second day. How many tons more are used on the second day than on the first day?
一队水泥1000吨，第一天用全部的30%，第二天用全部的(3/8)，第二天比第一天多用多少吨？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1_000 * (3/8)</gadget>
<output>375</output>

<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">1_000 * (3/10)</gadget>
<output>300</output>

<gadget id="calculator">375 - 300</gadget>
<output>75</output>

<result>75</result>