The total cost of the two commodities is 200 yuan, and the commodity a is priced at 30% of the profit

The total cost of the two commodities is 200 yuan, and the commodity a is priced at 30% of the profit

A ((27.7 + 200) × 0.9-1.2x200) × 1.3-1.2) = 130
B 200-130 = 70