A test-marketing of a newly released Blu-ray disc in a representative Canadian city, with a population of 120,000, resulted in sales of 543 units in a three-month period. If the Blu-ray disc sells at the same rate in the rest of the country, where 21,000,000 Canadians have access to retail outlets, what three-month sales may be forecast for the disc? Forecast 3-month sales of Blu-ray discs units