Finance
Shop Return on Investment Calculator (30 Years)
Calculate return on investment as a percentage. This shop version uses a 30-year planning term as its starting point.
This Return is the total gain over the whole period as a percentage of the amount invested, not a yearly rate; a positive figure means the final value is higher than the amount invested.
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 30 years. First, the gain is $15,000 minus $10,000, which is $5,000. Using the page formula, return equals $5,000 divided by $10,000, times 100, which is 50.00%. That is the calculator's own result for these defaults, and it is the same on every page in this group because the term is not an input: only the invested amount and the final value decide the answer.
As an illustration only, not the output of this page, the steady yearly rate that would grow $10,000 to $15,000 over 30 years, if growth were perfectly even every year, is 1.36% a year. The simple average, 50.00% divided by 30, is 1.67% a year, which ignores compounding and overstates the steady rate. The illustration is there so the same 50.00% total can be judged honestly over different lengths of time.
Who this term suits for a shop owner: a shop owner weighing a premises purchase against continuing to rent, where a 30-year horizon matches a mortgage-length decision, and the return on money already in the shop is one part of that choice.
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 shop 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.
Is a 30-year shop ROI the same as a premises mortgage plan?
No. This page only compares an invested amount with a final value. A mortgage plan also needs monthly payments, interest, maintenance, and the risk of falling takings, none of which appear in the 50.00% answer.
What happens if shop sales fall for several years in a 30-year plan?
The final value falls with them, and the return falls too. A 30-year figure built on today's takings will not survive a long weak patch unless the figures are updated.
Should a shop borrow on the strength of a 30-year ROI?
No, not on this figure alone. Borrowing needs monthly cash flow, not a total percentage over 30 years. A shop that cannot cover its monthly payments cannot wait 30 years for a return.
Estimates only, not financial advice. Figures are approximate and do not include all fees, taxes, or changing rates unless stated.
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