Consider the data in the table below.
Sept 2011 LIFFE Euribor STIR Future 99.35
Dec 2011 LIFFE Euribor STIR Future 99.05
a) If you were to purchase 10 Sept 2011 Euribor futures at 99.35 and sell them at 99.40 three days later, how much money would you have made or lost? Each future has a tick value of €25
b) What is the forward rate implied by the Dec 2011 STIR futures?
Detailed explanation along with formulas please.