Dave's Donuts operates out of a leased space in a shopping mall. Monthly fixed costs include rent, salaries, and utilities and total $4,218. If Dave's sells donuts for $1.89 each and variable costs are $1.19 per donut, how many donuts must Dave's sell in a month to breakeven? If Dave's sells donuts for $1.89 each and variable costs are $1.19 per donut, how many donuts must Dave's sell in a month to breakeven? Please show your calculations and round to two decimal places