PRICE(settle,mat,rate,yield,redemption_price,[frequency,basis])
PRICE returns price per $100 face value of a security. This method can only be used if the security pays periodic interest.
frequency is the number of coupon payments per year. Allowed frequencies are: 1 = annual, 2 = semi, 4 = quarterly. basis is the type of day counting system you want to use:
0 US 30/360
1 actual days/actual days
2 actual days/360
3 actual days/365
4 European 30/360