Let's assume you would like the effective rate to be 2% less than the base rate. Then, you should make the following configuration selection:
Select the margin type value fixed percentage that is subtracted from the base rate,
Set the default margin rate value to 2%.
Minimum and maximum margin rates act as boundaries for manual adjustments to the effective rate. Let's assume you want to limit the manual adjustment of the effective rate difference from the base rate to 3% maximum and 1% minimum. Then, you should set:
Min margin rate to 1%,
Max margin rate to 3%.
The feature to manually adjust the account's floating interest rate margin will be available in future releases.