description:
| Returns the interest rate per period of a loan or an investment. |
syntax:
| =RATE( nper, pmt, pv, [fv], [type], [guess] ) |
required arguments:
| nper | The total number of payment periods. |
| pmt | The payment made each period. |
| pv | The present value, or a total value of all loan payments now. |
optional arguments:
| [fv] | The future value. |
| [type] | 0 = end of period. 1 = beginning of a period. The default is 0. |
| [guess] | Your guess on the rate. Defaults to 10%. |
