In the previous example you computed the uniform periodic equivalent for a rent-buy scenario. Now let’s perform a breakeven analysis to see how the MARR affects the time values.

To perform the breakeven analysis, follow these steps:

1. Select both options.

2. Select Analyze Breakeven Analysis.

3. Enter 01JAN1996 for the Date.

4. Enter 12.0 for Value.

5. Enter 4.0 for (+/-).

6. Enter 0.5 for Increment by.

7. Click Create Breakeven Analysis Summary to fill the Breakeven Analysis Summary area as displayed in Figure 55.7.

Figure 55.7 Performing a Breakeven Analysis

Click Graphics to view a plot displaying the relationship between time value and MARR.

Figure 55.8 Viewing a Breakeven Graph

As shown in Figure 55.8, renting is better if you want a MARR of 12%. However, if your MARR should drop to 10.5%, buying would be better.

With a single investment, knowing where the graph has a time value of 0 tells the MARR when a venture switches from being profitable to being a loss. With multiple investments, knowing where the graphs for the various investments cross each other tells at what MARR a particular investment becomes more profitable than another.