ABC Manufacturing produces four types of products: P, Q, R, and S. During the first quarter, it produced 6,000 units of product P, 8,000 units of product Q, 5,000 units of product R, and 4,000 units of product S. The total manufacturing cost for product P was $50,000, for product Q was $70,000, for product R was $45,000, and for product S was $40,000. Calculate the manufacturing cost per unit for each product.