Case study- Excel (Coral Bay Electronics)
Instructions for Coral Bay Electronics Case
1. Read the case carefully: The case content contains all the information needed to complete
this Excel spreadsheet. You don’t need to submit another document to answer the questions
stated in the case. These questions serve as guidelines to help you work on the spreadsheet.
2. Download and rename the Excel file: Download the Excel file attached in the folder and
rename it to "Coral Bay Electronics_YOUR NAME."
3. Open and complete the yellow Cells: In the Excel file, complete the cells marked in yellow.
a. Start with the input area, then proceed to the output area. Ensure you have the correct
numbers in the input area, as incorrect numbers will affect the accuracy of estimations in
the output area.
b. Identify the values for equipment spending, salvage value, R&D, and marketing study costs
in cells D4-D7. Provide an assessment and explanation on whether to include development
spending and marketing study costs in the relevant cash flow estimation in cells E6 and E7.
c. Fill in cells D10-H13 for new tracker sales, depreciation rate, sales of old trackers, and lost
sales of old trackers.
d. Obtain the values for the price of new trackers, variable costs of the new tracker, and other
variables in the input table. Be accurate when entering numbers for "price of old tracker,"
"price reduction of old tracker," and "variable cost of old tracker."
4. Begin working on the output area:
a. Ensure you use variables from the input area in formulas to calculate output area values.
For example, to calculate new tracker sales in cell D30, use the formula =D15*D10 rather
than typing numbers directly. Manually entering numbers in the output area is not
acceptable !
b. Start with sales estimation: Use new tracker sales and the price of new trackers from the
input area to complete cells D30-H30 for new tracker sales.
c. Estimate Side Effects: Estimate "Lost sales due to new tracker," which calculates sales loss
due to decreased sales units of old trackers times old trackers’ original price, and "Lost
revenue due to new tracker," which estimates revenue loss due to price reduction for old
trackers sold in years 1 and 2. Net sales of new trackers are calculated as new tracker sales
minus these negative side effects.
d. Complete variable cost estimation: Adjust variable cost (VC) savings on old trackers,
considering the drop in old tracker sales in years 1 and 2.
e. Calculate operating cash flow for Years 1 to 5: Use prior calculations for net sales and net
variable costs. Apply the MACRS table to calculate annual depreciation.
5. Prepare net working capital (NWC) estimation:
a. Cells C51-H51 represent the total NWC investment required each year. Cells C52-H52
show the amount of NWC invested or recovered each year. Negative numbers in row 52
indicate NWC investment (cash outflows), and positive numbers indicate NWC recovery
(cash inflows). Pay special attention to NWC recovery in year 5. Refer to class notes (p.
11-30) for details.
6. After-tax salvage value estimation (only in Year 5): Calculate the after-tax salvage value.
Pay attention to the capital gains or losses when selling the equipment. The after-tax salvage
value in H58 corresponds to the net terminal cash flow (class notes, p. 11-31).
7. Calculate net cash flow (Net CF): Combine all relevant cash flows above to calculate Net
Cash Flow in row 61 and determine cumulative Net CF in row 62.
8. Calculate financial metrics: Compute the payback period, profitability index (PI), net present
value (NPV), internal rate of return (IRR), modified internal rate of return (MIRR), and NPV
based on the estimated net cash flows.
9. Provide conclusion and final assessment: Conclude with an assessment of the project below
row 71.