Kraft Profit Falls on Higher Costs  CHICAGO (Reuters) - Kraft Foods Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=KFT.N target=/stocks/quickinfo/fullquote"&gt;KFT.N&lt;/A&gt; on Monday  posted a 3.8 percent drop in quarterly profit, weighed down by  higher marketing spending and increased costs for cheese,  coffee and other materials.