The only incorrect item is Unit costs. I tried 10.36 and then 11.51 and they were incorrect.

Trumball Catering served 4,500 meals last month. Trumball recorded the following costs with those meals: Required: Trumball expects to serve 30 percent more meals in the next month. Unit variable costs are expected to remain unchanged. The controller at Trumball knows that if the business caters over 4,950 meals in a month, the company must hire an additional manager (part-time) at a cost of $3,474 for the month. Miscellaneous fixed costs are expected to increase by 15 percent. Calculate the unit cost and the total cost if expectations for costs and volume are met next month. Note: Do not round intermediate calculations. Round "Unit costs" answer to 2 decimal places