April 11 (Reuters) - Pre-owned vehicle retailer CarMax posted a lower fourth-quarter profit on Thursday, hurt by decreased profitability from units sold.

Net income in the quarter ended Feb. 28 fell to $50.3 million, or 32 cents per share, compared with $69 million, or 44 cents per share a year ago. (Reporting by Nathan Gomes in Bengaluru; Editing by Pooja Desai)