=DISC(settlement, maturity, pr, redemption, [basis])
=DISC(A2,A3,A4,A5,A6)
The DISC function can be used to calculate the bond discount rate for a bond with the terms in the table. For example, the formula above would be used to calculate the discount rate when the bond's face value, maturity date, interest rate, and issue date are specified in cells A2, A3, A4, and A5, respectively.
=DISC(B2,B3,B4,B5,B6)
The DISC function can also be used to calculate the bond discount rate for a bond with the terms in the table. For example, the preceding formula would be used to calculate the discount rate when the bond's face value, maturity date, interest rate, and issue date are specified in cells B2, B3, B4, and B5, respectively, and the settlement date is specified in cell B6.
The DISC function in Sourcetable is used to calculate the discount rate for a security, by using dates stored as sequential numbers.