What happens if the final amount or particular payment is in decimal form and there is a minor difference in the amount?

If you get the final amount difference, you can easily navigate to the “Payroll ⇒ Other Links ⇒ Pay Group.” You just need to configure the decimal amount to suit your needs.

Similarly, you can perform the decimal point configuration from “Payroll ⇒ Other Links ⇒ Pay Components”