Variable Costs, Contribution Margin, Contribution Margin Ratio Super-Tees Company plans to sell 10,000 T-shirts at $19 each in the coming year. Product costs include: 3. What if the per unit selling expense increased from $0.95 to $2.05 ? Calculate new values for the following: Round dollar amounts to the nearest cent and round ratio values to four decimal places (express the ratio as a decimal rather than a percentage): a. Variable product cost per unit $ b. Total variable cost per unit c. Contribution margin per unit d. Contribution margin ratio e. Total fixed expense for the year $