Corrections

When a formula, an example value or a worked example on this site turns out to be wrong, it is fixed and the change is recorded here. If you spot an error, send the page’s address, the numbers you entered and what you expected through the contact page.

How a correction is handled

• The calculation is repeated with the page’s formula and with an independent check (a different method, such as the closed-form balance instead of a month-by-month schedule).
• If the page is wrong, the formula, the worked example and the calculator are corrected together, and the change is listed below with its date.
• While a calculator is being checked it may be switched off. Its formula and worked example stay on the page.

Log

No corrections have been needed yet.