In: Advanced Math
Scenario
ABCD, Ltd. is a sports equipment manufacturer that
owns and operates a number of manufacturing plants across the
country. The company operates one particular plan where both
footballs and basketballs are manufactured. While the company has
some flexibility to move manufacturing effort between basketball
and football production, the current processes do impose limits on
the minimum and maximum number of each ball that can be
produced.
Production capacity, cost of materials, labour costs,
manufacturing time, and other known constraints are provided
below:
Production Capability and Constraints (All
unit costs are in $ and time in hours)
Total Machine hours available: Min 39,000 – Max 40,000
hrs.
The number of basketballs that can be produced: Min
30,000 – Max 60,000
The number of footballs that can be produced: Min
20,000 – Max 40,000
Time to manufacture a Basketball: 0.5 hrs.
Time to manufacture a Football: 0.3 hrs.
Cost of labour -- 1 machine hour: $6.00
Cost of material-- 1 Basketball: $2.00
Cost of material-- 1 Football: $1.25
ABCD believes it can sell each basketball for $14.00
and each football for $11.00. Further, the company believes
that cost of material and labour costs will not change over the
next production cycle. The corporate tax rate is
28%.
The company wants to determine the ideal number of
basketballs and footballs to manufacture that will maximize the
facility’s net profit after taxes.
Management Report
Prepare a written management report that includes, at
a minimum, the following sections:
Purpose of the Report
Description of the Problem
Methodology (which would include the model
formulation)
Findings or Results
Recommendations or Conclusions
Be sure to address all relevant points, discuss any assumptions you
are making, and highlight the following items in your report:
A recommendation for the number of basketballs and
footballs to manufacture that maximizes net profit after taxes
given the existing constraints.
A discussion of which constraints are binding and the
amount of slack or surplus in the remaining constraints.
A list of recommendations as to what actions the
company may take in the future to increase profitability, and how
much extra profit the company might expect if the action is
taken. Note that these values can be used by the company to
determine whether the expected gain in net profit will offset any
capital investment required to implement your
recommendations.
Remember that you are writing the report from the point of view of
a consultant with senior management of ABCD, Ltd. as the intended
audience.
Hints
You need to assume, or guess, an initial number of
production units for each product and proceed with using Excel to
calculate your Net Revenue for manufacturing. It is ideal to set up
a separate section on your spreadsheet that presents the
information to be used in the analysis. This information should be
organized under the headings “Changing Cells,” “Constants,”
“Calculations,” and “Income Statement.”
Once your spreadsheet model is designed, you can
proceed with setting Excel SOLVER to carry the calculation.
Excel SOLVER is an add-in for MS Excel that can be used for
optimization and other linear programming models. Appendix 7.1 on
page of 298 of your textbook provides an overview of how to
formulate a model and use Solver to extract the required
information.
Please also note that your tax will be applied to your
Net profit [TR – TC], and if your total cost [TC] is greater than
your total revenue [TR], you will have a loss that will be exempted
from tax. So, in calculating your Tax you need to use an “IF
Statement”, i.e., IF (profit <=0, then put Tax=0, otherwise
calculate Tax).