XYZ Company, Annual Data 
Based on the information given in the table above, what is the average forecast error?
Definitions:
Sales Details
Specific information related to the quantity, price, and conditions of a product or service sale.
Value of K
In various contexts, it represents a specific variable or parameter value, such as the number of nearest neighbors in KNN algorithm or clusters in K-means clustering.
Mean Absolute Deviation
A measure of variability that averages the absolute deviations of individual observations from a central point, typically the mean.
Sales Details
Specific information related to the volume, transactions, and characteristics of sales within a business or market.
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