Pre and Post Test

#1
Hi,

I have done a small information session for 72 people and all of them has completed the pre and post questionnare. Pre and post questionnare has the same questions. I wanted to measure if the awareness of the attendiees has changed after the session. How should i record the collected data and how should i compaire this to see the impact of the training?. the only tool i have is the MS excel..
Thanks in advance