T. Rowe Price Posts 25 Percent Profit  NEW YORK (Reuters) - Investment manager T. Rowe Price Group  Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=TROW.O target=/stocks/quickinfo/fullquote"&gt;TROW.O&lt;/A&gt; on Tuesday said its quarterly profit jumped 25  percent on an increase in investment advisory revenue.