Answer: Decline stage
Step-by-step explanation:
The stage of the sales life cycle the product is in the Decline stage of the product cycle. We can see that the average performance of the product over its past life is higher than that of its last year's performance.
Under the decline stage, there will be a reduction in the quantity of goods that's sold thereby leading to a reduction in profits until it gets to a point that producing the goods will not be profitable anymore.