Calgary Ice Cream

Month number of snow cone total operating costs

jan $3500$ $$5000$

feb $3800$ $$4800$

march $5000$ $$6800$

april $3600$ $$5450$

may $4700$ $$6200$

june $4250$ $$5950$

Calgary Ice Cream uses the high$-$low method to determine its operating cost equation and sells $4,500$ cones in a month for $$3\mathrm{.}00$ each. What would Calgary Ice Cream contribution margin be if it prepared a contribution margin income statement for the month?

$$18,900$

$$13,500$

$$8,100$

$$5,400$