First we must determine the cost of goods sold during November. For this we use beginning inventory ($368,000) + purchases ($217,500) - ending inventory ($226,750). This gives us a total cost of goods sold for November of $358,750.
Then, we take the net sales ($1,000,000) minus the cost of goods sold ($358,750) which equals our gross profit of $641,250.
Finally we divide gross profit ($641,250) by net sales ($1,000,000) to determine the gross profit rate to be 64.125%
