At the beginning of the current year, Martin Corporation purchases 20% of the outstanding shares of Foster Company for $200,000 which gave Martin the ability to significantly influence Foster. The price paid reflected Foster's book and fair values of its assets and liabilities. During the current year, Foster reports net income of $25,000 and declares dividends of $15,000. At the end of the current year, what amount should Martin report as investment income from its ownership of Foster's shares?