Jurisdiction matters
CFPB explains US mortgages, not Azerbaijan’s calculation requirements. Ask your lender for its method.
FinFly Explains / Economy
APR: compare the calculation
APR is broader than the interest rate; included costs depend on the applicable rules.
A limit
Variable-loan APR is not the maximum future rate.
Method
Primary sources
The explainer is checked against these institutional and industry sources. Links open the original material.