There are 8 boxes of the same candy, if 200 grams are taken out of each box, then the remaining 8 boxes of candies are exactly equal to the weight of the original 4 boxes. How many grams per box of candy?
有8盒一样的糖果，如果从每盒中取出200克，那么8盒剩下的糖果正好等于原来4盒的重量．原来每盒糖果多少克？
<gadget id="calculator">8 - 4</gadget>
<output>4</output>

<gadget id="calculator">8 / 4</gadget>
<output>2</output>

<gadget id="calculator">200 * 2</gadget>
<output>400</output>

<result>400</result>