1. Suitable for product categories.
Sales fluctuate to a certain extent; non-standardized products; sales fluctuate with the overall trend of the industry; non-personalized products; not hot-selling products.
2. Calculation method.
I3=S7+S14÷2+S30÷2.
The calculation formula with weights of 100%, 50%, and 50% respectively (this calculation formula can be used when the product listing has entered a stable period and sales are in a stage of small fluctuations).
I30=S14+S30÷2.
Calculation formulas with weights of 0%, 100%, and 50% respectively (this calculation formula can be used when sales have declined in a short period of time due to unexpected circumstances in the past week, such as sudden store closures/follow-up sales, etc.) ).
I30=S7+S30×0.75.
Calculation formulas with weights of 100%, 0%, and 75% respectively (this calculation formula can be used when sales have been fluctuating from the past month to the past half month, and have not stabilized until the past week) .
3. How to use.
If a product suddenly grows rapidly and sales decline in the past 7 days due to FBA inventory being sold out, then the next time you stock up, you need to increase the weight of the 14-day or 30-day sales and the weight of the sales in the past 7 days. On the contrary, if the product sales increase suddenly and FBA supply is sufficient, then it will take nearly 7 days to increase the weight.
4. Evaluation of this method.
It has a wide range of applications; the calculation error is moderate; the calculation methods are flexible and diverse; the weight derivation is troublesome; it is impossible to predict the sales of popular models and best-selling models, and it is easy to be out of stock.