Chompers Dental supplies has a new operations manager. She is reviewing Chompers operations policies. Chompers is planning on opening in a new geographic area in 2016. In anticipation of the increased demand, they acquired more inventory. The new operations manager wants to see if the new acquisitions are excessive. In 2015, Chompers sales were $3,678,900 while the cost of goods sold was $2,087,623. Their beginning inventory in 2015 was $467,500 and their ending inventory was $536,800. What was Chompers average inventory for 2017?

a. $523,150
b. $467,500
c. $502,150
d. $536,800