Respuesta :
Answer:
a) Contribution margin is $360,000 and Net income is $101,250.
b) The portion of sales revenue that is not used to pay variable costs is $360,000. That is, the portion of the sales revenue that is left to pay for fixed costs and make a profit is $360,000.
c) The percentage of sales revenue that is left after deducting all the variable costs is 72%. In other words, 72% of sales revenue is left to pay for fixed costs and make a profit.
Explanation:
These can be calculated as follows:
a) Prepare a contribution margin income statement
Tight Drums Company
Contribution margin income statement
For the year ended December 31, 2015
Particulars                         $             $
Sales revenue (1,000 * $500) Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 500,000
Variable costs   Â
  Plastic for casing               (17,000) Â
  Wages of assembly workers     (82,000) Â
  Drum stands                (26,000)  Â
  Sales commissions             (15,000) Â
Total variable cost                              (140,000) Â
Contribution margin                            360,000
Fixed costs  Â
  Taxes on factory                (5,000) Â
  Factory maintenance            (10,000) Â
  Factory machinery depreciation   (40,000)   Â
  Lease of equip. for sales staff     (10,000) Â
  Accounting staff salaries         (35,000) Â
  Admin. management salaries    (125,000) Â
Total Fixed cost                               (225.000)
Income before tax                               135,000
Tax (135,000 * 25%) Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â (33,750) Â
Net income                                   101,250 Â
b) Interpret the contribution margin
Contribution margin is sales revenue minus total variable cost.
From part a, contribution of $360,000 therefore implies that the portion of sales revenue that is not used to pay the variable costs is $360,000.
That is, the portion of the sales revenue that is left to pay for fixed costs and make a profit is $360,000.
c) Interpret the contribution margin ratio
Contribution margin ratio = Contribution margin / Sales revenue = $360,000 / $500,000 = 0.72, or 72%
This implies that 72% of sales revenue is left after deducting all the variable cost. In other words, 72% of sales revenue is left to pay for fixed costs and make a profit.