March 25th, 2011, 4:08 pm
start by projecting your forward rates, compute each "fixing", and calculate the average per the contract. keep in mind, that depending upon how the contract is written, there may be a volatility component which contributes to the price, related to :1/avg(p1, p2,......pn) <> avg(1/p1, 1/p2,......1/pn)