I really really need some help on this one!!! All I need is for someone to point me in the right direction. I have filled in the blanks of the income statement and figured out what the net income is. I am very stuck.

How do I get the depreciation expense based on this information:

sales = $51,700
costs = $39,100
addition to retained earnings = $2,925
dividends paid = $960
interest expense = $1,510
tax rate = 30 percent

Thank you for your help!!!