On December $30,$ Year $3,$ Charles Industrial sold its investment in marketable equity securities costing $$800,000$ for $$840,000$ cash. The securities were purchased on January $2,$ Year $1,$ and the market value of the securities was $$850,000$ and $$790,000$ on December $31,$ Year $1$ and Year $2,$ respectively. How much gain or loss will Charles Industrial report in its income statement for the year ending December $31,$ Year $3?$