Answer:
Sales Revenues 26100
COGS Â Â Â Â Â Â Â Â Â 5655
gross profit     20445
rent expense         1600
depreciation expense  200
operating expense 2600
net income         16045
 Â
Sales Revenues      26100
Variable Cost          6305
Contribution margin     19795
rent expense           1600
depreciation expense    200
fixed operating expense  1950 Â
net income          16045
Explanation:
traditional:
COGS
$12 tub / 30 ice cream cones = $0.40
+ 0.25 ice cream cones
total per unit 0.65
8,700 x 0.65 = 5655
Gross profit: sales revenue less COGS
then, we subtract the rent expense, depreicaiton expense and operatign expenses to get net income.
contribution the variable cost will be subtracted from the sales revenues
that will include the 75% of the operating expenses
The difference between sales revenue and variable cost is called contribution margin.