Behind declines for shares of Cisco and Amgen Inc., the Dow Jones Industrial Average is falling Tuesday afternoon. The Dow DJIA, -0.31% was most recently trading 178 points, or 0.5%, lower, as shares of Cisco CSCO, -1.43% and Amgen Inc. AMGN, -2.04% have contributed to the blue-chip gauge’s intraday decline. Cisco’s shares are down $1.18 (2.2%) while those of Amgen Inc. are off $4.97 (2.0%), combining for an approximately 40-point drag on the Dow. Also contributing significantly to the decline are Intel INTC, -1.13%, Coca-Cola KO, -1.30%, and Microsoft MSFT, -1.44%. A $1 move in any of the benchmark’s 30 components results in a 6.58-point swing.