There used to be 700 bales of grain in the warehouse, but 280 bales were shipped out on the first day, and 350 bales were shipped in on the second day. How much more did the grain in the warehouse increase by what percentage?
仓库里原来有粮食700包，第一天运出280包，第二天运进350包，这时仓库里的粮食比原来增加百分之几？
<gadget id="calculator">700 - 280</gadget>
<output>420</output>

<gadget id="calculator">420 + 350</gadget>
<output>770</output>

<gadget id="calculator">770 - 700</gadget>
<output>70</output>

<gadget id="calculator">70 / 700</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(1/10) * 1</gadget>
<output>1/10 = around 0.1</output>

<result>1/10 = around 0.1</result>