The Standard & Poor’s GSCI gauge of 24 raw materials fell 1.4 percent to settle at 635.82 at 4 p.m. in New York, paced by grains. The UBS Bloomberg CMCI index of 26 prices declined 0.9 percent to 1,554.94. Corn fell from a record after livestock producers hurt by higher feed costs urged the U.S. to suspend an alternative-fuel mandate that is driving grain demand from ethanol makers. On the Chicago Board of Trade, corn futures for December delivery dropped 1.1 percent to $8.0525 a bushel, after touching an all-time high of $8.205. Wheat futures for September delivery fell 2.9 percent to $8.8825 a bushel. The grain, which competes with corn in livestock feed, surged 17 percent this month. Soybean futures for November delivery declined 0.2 percent to $16.41 a bushel.