Payment calculator
This program is used to calculate various information based on the loan details entered.

User defined options
- Principal = The amount of money that the member wants to borrow.
- Number of months = The number of payments that will be made to repay the borrowed amount.
- Loan product = The account that will be used to track the amount borrowed.
- Interest rate = The rate that interest will be charged on the amount borrowed.
- Repayment amount = The repayment amount needed to pay back the loan. (Calculated based on amount borrowed and number of payments.)
- Final payment if different = The repayment amount needed for the last payment if different from usual repayment.
- Total interest charged = The total amount of interest charged of the term of the loan.
- Date loan granted = The date that the loan is issued.
- Date of last repayment = The date that the loan will be repaid.
(N.B. These figures are based on the member taking a new loan, and making payments on time at the expected repayment amount.)