where ​FV​ is the future value, ​PV​ is the present value, ​n​ is the number of years, ​k​ is the number of compounding periods per year, and ​r%​ is the nominal annual rate of interest.

You should understand the meaning of each variable and know how to use your calculator's Finance/TVM Solver:

To solve for an unknown, move your calculator's cursor to the unfilled slot and press alpha ​→​ enter.

Be very careful if P/Y is different from C/Y. The letter N will always be the number of payment periods, or in other words the number of years times P/Y.

Whenever you use the Finance App (TVM Solver) on your calculator, it's critical that you enter and interpret the signs correctly:

When you receive money from a bank or savings account, that value is positive, because you're gaining money.

When you send money to a bank, that value is negative, because you're losing money.

The real interest rate (needed when a question involves inflation) is given by ​r%=c%−i%, where ​c%​ represents the given interest rate (the nominal rate) and ​i%​ represents the inflation rate.

Note: You can calculate the real interest rate ​r%​ and enter it directly into the TVM solver (when required) as the nominal annual interest rate (​I%​ on your calculator), since the TVM solver does not account for inflation effects in its standard calculations.

where ​FV​ is the future value, ​PV​ is the present value, ​n​ is the number of years, ​k​ is the number of compounding periods per year, and ​r%​ is the nominal annual rate of interest.

You should understand the meaning of each variable and know how to use your calculator's Finance/TVM Solver:

To solve for an unknown, move your calculator's cursor to the unfilled slot and press alpha ​→​ enter.

Be very careful if P/Y is different from C/Y. The letter N will always be the number of payment periods, or in other words the number of years times P/Y.

Whenever you use the Finance App (TVM Solver) on your calculator, it's critical that you enter and interpret the signs correctly:

When you receive money from a bank or savings account, that value is positive, because you're gaining money.

When you send money to a bank, that value is negative, because you're losing money.

The real interest rate (needed when a question involves inflation) is given by ​r%=c%−i%, where ​c%​ represents the given interest rate (the nominal rate) and ​i%​ represents the inflation rate.

Note: You can calculate the real interest rate ​r%​ and enter it directly into the TVM solver (when required) as the nominal annual interest rate (​I%​ on your calculator), since the TVM solver does not account for inflation effects in its standard calculations.