Working Out How Many Periods. You can calculate how many Periods if you know a Future Value, a Present Value and the Interest Rate. Example: you want to know how many periods it will take to turn $1,000 into $2,000 at 10% interest.orking Out How Many Periods. You can calculate how many Periods if you know a Future Value, a Present Value and the Interest Rate. Example: you want to know how many periods it will take to turn $1,000 into $2,000 at 10% interest.
Begin the process by double-clicking the Excel file that contains the cells that you want to resize. Locate the cell that you want to adjust, then right click the column heading at the top of that cellâs column. The column heading is the letter above the spreadsheet. Click the Column Width option, then enter a value into the field. You can enter any value into this field up to 255, but bear in mind that the default value is 8.43, so adjust accordingly. Once you have entered a new value, click OK.
Select the cell that will contain the answer. All functions in Excel start with an equals sign, =. Type in the function that you would like to calculate. You can select a cell or group of cells as variables. For example, to add the value in cell A1 to the value in cell A2, you can type in the function =A1 + A2. An alternative method: Type =.