A bottle of soy sauce weighs 700 grams. From the label, it can be seen that the "net content" of this bottle of soy sauce is 580 grams. How many grams does this soy sauce bottle weigh?
一瓶酱油重700克，从标签可以看出这瓶酱油的"净含量"是580克．这个酱油瓶重多少克．
<gadget id="calculator">700 - 580</gadget>
<output>120</output>

<result>120</result>