Hi, and welcome to the forum.

Hylander wrote:Does Libre Office have an amortisation table function?

If you mean that you want to calculate loan payments based on the loan amount (cell A1), loan term in years (B1), yearly interest rate (C1), and payment frequency per year (D1), in Calc the formula is

=PMT(C1/D1;B1*D1;-A1). To borrow $100,000 for 25 years at 10.75% we have A1=100000, B1=25, C1=.1075, so if D1=12 (monthly payments) the formula's value is $962.09. Since the monthly payment is directly proportional to the loan amount, this answer means that payments for 25 years at 10.75% are $962.09 per $100,000 borrowed.

If this answered your question please go to your first post use the Edit button and add [Solved] to the start of the title. You can select the green checkmark icon at the same time.
Mr. Programmer

AOO 4.1.5 Build 9789 on MacOS 10.11.6. The locale for any menus or Calc formulas in my posts is English (USA).