Identifying a "Mystery" Financial Calculator
Clear your calculator's financial registers. (If your calculator uses a
periods/year variable, clearing should reset that variable to 12.)
Enter the following values, all as positive numbers.
N = 10  I = 1  PMT = 50  PV = 1000  FV = ??? 
Now compute the future value.
Your answer for FV:  Rate  Positive Payment  Future Balance  Convention 
506.49  Annual  Decreasing Annuity  Balance  Loan 
506.49  Annual  Decreasing Annuity  Withdrawal 

581.51  Periodic  Decreasing Annuity  Balance  Loan 
581.51  Periodic  Decreasing Annuity  Withdrawal 

1510.24  Annual  Increasing Annuity  Balance  Basic 
1510.24  Annual  Increasing Annuity  Withdrawal  Standard 
1627.73  Periodic  Increasing Annuity  Balance  Basic 
1627.73  Periodic  Increasing Annuity  Withdrawal  Standard 
 Basic convention calculators represent payments which
increase the balance of an account as positive payments, and future
values are given as balances in that account.
 Standard convention calculators represent payments
which increase the balance of an account as positive payments, and
future values are treated as amounts which can be withdrawn from the
account.
 Loan convention calculators represent payments which
decrease the balance of an account as positive payments (making loan
computations easier), and future values are given as balances in that
account.