Beta Pharmaceuticals produces medication. During the production process in July 2024, 20,000 units were started, and 18,000 units were completed and transferred out. Of the 18,000 completed units, 12,000 units were of Product A, and 6,000 units were of Product B. The joint costs incurred during the production process amounted to SAR 50,000. Allocate joint costs to Product A and Product B using the sales value at split-off method.