The meaning of investment and investment appraisal

Investment involves a business spending money on fixed assets that could bring financial gains in the future, such as buying production machinery or setting up solar power systems.

Investment appraisal is a numerical approach that helps evaluate if spending on capital items will be financially beneficial for a company, aiding in decisions about whether to proceed with such expenditures.

The payback period method of investment appraisal

The payback period calculates how long it will take for an investment to generate sufficient returns to cover its original cost. This method helps businesses determine if they can recover the expense of an asset, like a commercial printer or computer network, before it requires replacement.

A shorter payback period is often preferred, depending on industry standards and the company's targets. Projects with quicker recovery times are typically seen as more appealing.

This technique is particularly useful for businesses that prioritise rapid returns, value cash availability over long-term gains, or aim to minimise the time money is tied up in projects.

Formula for calculating payback period

$\text{Payback period}=\frac{\text{cost of the investment}}{\text{annual net cash flow}}$

Where:

• Cost of the investment = Initial amount spent on the project (£)
• Annual net cash flow = Yearly net income generated by the investment (£)

A higher annual net cash flow leads to a shorter payback period.

Worked example - Calculating payback period

A company invests £150,000 in new equipment that generates an annual net cash flow of £30,000. Calculate the payback period for this investment.

Step 1: Identify the values

• Cost of the investment = £150,000
• Annual net cash flow = £30,000

Step 2: Apply the payback period formula

$\text{Payback period}=\frac{\pounds \mathrm{150,000}}{\pounds \mathrm{30,000}}$

Step 3: Calculate the payback period

$\text{Payback period}=5\text{ years}$

Advantages and disadvantages of the payback period method

Advantages of the payback period method

• It provides a straightforward and fast way to assess investments.
• Managers can easily interpret the outcomes.
• Asset depreciation can be factored into calculations without complicating the process.
• It supports selection of projects with quicker recovery to limit exposure to risks.

Disadvantages of the payback period method

• It overlooks when cash flows occur, even though money received later is worth less.
• The method is less effective for extended projects with prolonged recovery times.
• Emphasis is placed on speed rather than overall profitability, which may not suit profit-driven organisations.
• Any benefits from the asset beyond the recovery point are not accounted for.

The average rate of return method of investment appraisal

The average rate of return measures the typical yearly profit from an investment as a percentage of the starting amount invested. This figure is weighed against the company's required return rate, often linked to bank interest levels or comparisons with other potential projects, to decide if the investment should go ahead.

Higher average rates of return make projects more appealing financially. However, elevated interest rates can reduce attractiveness, as keeping funds in a bank might be safer and less risky, particularly if borrowing is needed.

Formula for calculating average rate of return

$\text{Average rate of return (ARR)}=\frac{\text{average annual profit}}{\text{initial investment}}\times 100$

Where:

• Average annual profit = Total profit divided by the number of years (£)
• Initial investment = Starting cost of the project (£)

Worked example - Calculating average rate of return

A firm invests £200,000 in a project that generates a total profit of £120,000 over 4 years. Calculate the average rate of return for this investment.

Step 1: Identify the values

• Initial investment = £200,000
• Total profit = £120,000
• Number of years = 4

Step 2: Calculate average annual profit

Average annual profit = £120,000 ÷ 4 = £30,000

Step 3: Apply the ARR formula

$\text{ARR}=\frac{\pounds \mathrm{30,000}}{\pounds \mathrm{200,000}}\times 100$

Step 4: Calculate the ARR

$\text{ARR}=15\%$

Advantages and disadvantages of the average rate of return method

Advantages of the average rate of return method

• It is easy to comprehend and compute.
• Profitability is the main focus, unlike methods that prioritise timing.
• Businesses can assess their own performance using this metric.
• The percentage format allows straightforward comparisons between various investment options.

Disadvantages of the average rate of return method

• It does not account for the specific timing of cash inflows.
• The emphasis on profits may overlook the need for quick cash recovery to fund further initiatives.
• Projections become less reliable for longer-term projects due to their predictive nature.