Global Communications, Inc. manufactures communications satellites used in TV signal transmission. The firm currently purchases one component for its satellites from a company's own component, part number A200, instead of the European component. However, the Global Communications component must be modified at a cost of $850 per part. The European component costs $11,100 per part. Global Communications' part number A200 costs $6,900 before it is modified. Global Communications currently uses 13 of the European components per year. Required: Calculate the annual differential cost between Global Communications' two production alternatives. Annual differential cost