4.5 Business case for capital investment essentials
The necessity to prepare a business case to support capital investment will depend on the circumstances of individual entities. Better practice entities prepare a supporting business case for all major investments whether these be measured quantitatively in dollar terms or qualitatively in terms of the significance of the impact that the new asset will have on the operation of the entity.
If entities undertake a business case for capital investment, elements that could be considered for inclusion, depending on the circumstances, include strategic alignment, net present value analysis, projected accrual financial statements and cost-benefit analysis. Some of the assumptions that underpin the net present value analysis performed as part of the business case include incremental cash flows, nominal terms and comparability. A better practice business case for capital investment would address the key elements as depicted in Table 4.3 below.
Table 4.3: Business case essentials
| Components | Key elements |
|---|---|
| Summary |
|
| Strategic alignment |
|
| Net present value analysis |
|
| Accrual financial statements |
|
| Cost-Benefit analysis |
|
| Risk analysis |
|
| Related operations |
|
| Identified savings |
|
Table 4.4 explains some of the key assumptions that underpin a net present value analysis performed as part of the business case.
Table 4.4: Assumptions underlying a net present value analysis
| Assumption | Relevance to net present value analysis |
|---|---|
| Base case |
Base case This is the ‘minimalist’ case that is required to be included in the business case and represents the lowest level of service and is the full cost (not incremental cash flows). |
| NPV |
The NPV is the present value of the net cash flows. When comparing NPVs for the viable options the NPV of the base case should be taken as nil. |
| Incremental cash flows |
Each viable option, apart from the base case option, is to be evaluated on an incremental cash flow basis. Incremental cash inflows and outflows are only those which are in addition to the base case option. |
| Timing of cash flows |
Cash inflows and outflows are analysed at the time cash is received or payment made rather than the accrual recognition points. |
| Nominal terms |
Cash inflows and outflows are in nominal terms which include estimates for inflation over the life of the procurement. |
| Comparability |
The evaluation period over which the project is to be obtained for each option should be equivalent and should include the full life-cycle costs. This may result in options using the lowest common multiple method for calculating the NPV (when replacement chains of assets can be made of equal length) or the equivalent annual value method which makes the assumption that chains of replacement are infinite. Comparability is required so that each option NPV may be used to rank its priority to determine the preferred option. |
| Lowest common multiple method |
Conversion of the NPV into two chains of replacement of equal length being the lowest common multiple (not required if base case and option evaluation period is of equal length). |
| Probabilistic estimation |
Each capital project will have a number of significant risks that should be considered when estimating project costs. Formal risk identification enables risk mitigation strategies to be established, and allows for proper costing as part of the capital budgeting process. One risk is that cost estimates have a level of uncertainty, which will reduce as the project nears completion. The overall estimate should be maintained under a costing framework which reflects that the base estimate may increase while the allowance for risk decreases. A contingency allowance is typically added to base estimates to cover uncertainties such as inherent risk, contingent risk and escalation. Probabilistic estimation can be used to calculate the contingency allowance. This is a weighted cost estimate of identified specific risks calculated by the multiplication of risk consequences by a probability factor. The aggregation of base estimate costs, the costs of all identified risks through probabilistic estimation and an allowance for inherent risk and escalation will result in a robust cost estimate for the project. Case Study 2.4 illustrates the use of probabilistic estimation. |
| Discount rate |
The discount rate applied would be determined by the entity based on its individual circumstances and would typically be the weighted average cost of capital. Note, however, that other discount rates may be mandated under the regulatory environment, such as the Australian Government Property Ownership Framework. |
| Source of information |
Cash inflows and cash outflows should be estimated, where possible, on externally available data. Such information may be obtained from market prices, industry experts and benchmarking data. |
| Cash inflows |
Cash inflows are incremental income streams for each of the options expected to be generated in addition to those included in the base case. They should also include avoided cash outflows. For example, the current cost of procurement in the base case would be a future net cash outflow to be avoided if the option was for an alternative procurement strategy. Additionally, they should include the release of capital generally through a sale (residual value). |
| Disposal cost |
The cost of removing a product after its usefulness has ended, including costs to decommission, dismantle, make environmentally safe, transport and dump. If the products are sold and the proceeds from the sale exceed the other costs of disposal, the product will have a disposal value that reduces the life-cycle cost. |