Finance

Business Return on Investment Calculator (35 Years)

Calculate return on investment as a percentage. This business version uses a 35-year planning term as its starting point.

In plain terms, the Return figure is the total gain on the amount invested over the whole 35 years, so a positive figure means the final value ended higher than the amount invested, and a negative figure would mean it ended lower.

Formula

Return equals final value minus invested amount, divided by invested amount, times 100.

How it works

A positive return means the final value is higher than the amount invested.

Worked example

Amount invested $10,000, final value $15,000, term 35 years. First, the gain is $15,000 minus $10,000, which is $5,000. Using the page formula, return is $5,000 divided by $10,000, times 100, which is 50.00%. That is the total return over the whole 35 years, not a yearly rate. As an illustration only, not the output of this page, the annualised rate behind the same result is about 1.17% a year, because $15,000 divided by $10,000 is 1.50, and the 35th root of 1.50 is about 1.0117.

Who this term suits for a business: a mature company weighing diversification, a second brand, or a succession investment, where the owners must decide whether a very long, slow return is worth the management time it consumes.

FAQs

What is a good ROI?
There is no single good figure. Compare returns over the same period and with the same risk before deciding.

Is this business calculator exact?
No, it is an estimate for planning only, based on the numbers you enter.

Are these figures financial advice?
No, they are estimates for planning only, not financial advice. Check with a qualified adviser for decisions involving large sums.

Why does the annual rate fall to 1.17% at 35 years even though total ROI is unchanged?
Because the same $5,000 gain is divided over more years. As an illustration only, not the output of this page, the annualised rate is about 1.17% a year, since 1.50 to the power of one over 35 is about 1.0117, so time alone drags the yearly rate down.

How do recessions or downsizing affect a 35-year ROI?
They can wipe out years of gain in one bad period, and a single headline figure hides them completely. A business should look at the worst years inside the 35 years, not just the final total, before trusting the average.

Should a 35-year ROI be compared with a shorter, lower-risk return?
Yes, always. If a shorter, safer use of the money, such as clearing a loan or upgrading equipment that cuts costs at once, beats about 1.17% a year, the long project is hard to justify on return alone.

Estimates only, not financial advice. Figures are approximate and do not include all fees, taxes, or changing rates unless stated.