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Y= a+ bx
a is 40000
b is 1000
x is the quarter number i.e year 1 quarter 1 is 1 , year 1 quarter 2 is 2. Seasonal variations are applied as a proportion of the trend and the actual sales in year 1 quarter 1 were 47560 units. It has been decided that this year 1 data is to be used to forcast sales in year 2.
Using multiplicative model, what are the forecast sales for year 2 quarter 1? In units?
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