sorry, we can't provide the specific cost calculation method for fast donkey vegetable distribution. However, I can provide some factors that may affect the cost:

1. Distribution distance: Vegetable distribution is usually charged according to the distance, and the farther the distance, the higher the cost may be.

2. delivery weight: the weight of delivered vegetables will also affect the cost, which is usually calculated according to the delivery fee per kilogram or per kilogram.

3. Distribution types: Different vegetable varieties may have different distribution costs, and some special vegetables or vegetables requiring special treatment may have higher distribution costs than ordinary vegetables.

4. Seasons and market demand: In some seasons or peak market demand, the cost of vegetable distribution may be higher.

generally speaking, the specific cost calculation method may vary due to factors such as region, distribution company, distribution distance, distribution weight, distribution type, season and market demand. I suggest you contact the local vegetable distribution company directly to find out the specific cost.