Figure 8–7
Spreadsheet solution to select from multiple cost alternatives, Example 8.7 .
IRR(D6:D14)
Comment
As mentioned earlier, it is not possible to generate a PW versus i graph for each cost alternative
because all cash flows are negative. However, it is possible to generate PW versus i graphs
for the incremental series in the same fashion as we have done previously. The curves will
cross the PW 0 line at the i * values determined by the IRR functions.