Shares of Salesforce.com Inc. and Goldman Sachs are trading lower Thursday afternoon, leading the Dow Jones Industrial Average selloff. The Dow DJIA, -1.78% was most recently trading 477 points (1.4%) lower, as shares of Salesforce.com Inc. CRM, -5.53% and Goldman Sachs GS, -3.05% have contributed to the index’s intraday decline. Salesforce.com Inc.’s shares are down $10.37, or 4.9%, while those of Goldman Sachs are off $11.03 (3.1%), combining for a roughly 141-point drag on the Dow. Caterpillar CAT, -4.37%, IBM IBM, -3.26%, and 3M MMM, -3.57% are also contributing significantly to the decline. A $1 move in any one of the 30 components of the Dow equates to a 6.59-point swing.