Dartmouth Company produces a single product with a price of $12, variable cost per unit of $3, and total fixed cost of $7,200. 710. Refer to the information for Dartmouth above. The variable cost ratio and the contribution margin ratio for Dartmouth are: Variable cost ratio Contribution margin ratio 1. 80%80%. 2. 20%80%. 3. 25%75%. 4. 75%25%. 5. The contribution margin ratio cannot be determined from the information given