Question: An operation analyst is forecasting this years demand for one of his company's products based on the following historical data Year Quantity Sold Forecast 4

An operation analyst is forecasting this years demand for one of his company's products based on the following historical data

Year Quantity Sold Forecast
4 years ago 12923 12009
3 years ago 13774 13430
2 years ago 14768 14296
last year 15348 15824

What was the mean absolute percent error for these forecsts

a. 0.0412052

b. 295195

c. 2206

d. 3.9669

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