Inventory forecasting is the process of estimating the future demand and supply of your products. It helps you plan your inventory levels, purchasing, production, and distribution activities. A good inventory forecast can help you avoid stockouts, overstocking, and missed opportunities. A poor inventory forecast can result in lost sales, customer dissatisfaction, and wasted resources. To evaluate your inventory forecasting, you can use the following metrics: Forecast accuracy = 1 - (Absolute value of (Actual demand - Forecasted demand) / Actual demand) Forecast bias = (Actual demand - Forecasted demand) / Actual demand The higher the forecast accuracy, the better your inventory forecasting. A common benchmark is to aim for at least 80% forecast accuracy. The closer the forecast bias to zero, the more unbiased your inventory forecasting. A positive forecast bias means you overestimate your demand, while a negative forecast bias means you underestimate your demand. To improve your inventory forecasting, you can use historical data, market trends, seasonal patterns, and statistical methods, as well as update and review your forecasts regularly.
Inventory management is a complex and dynamic skill that requires constant monitoring and improvement. By measuring and improving your inventory accuracy, turnover, and forecasting, you can enhance your operational efficiency, customer satisfaction, and profitability.