Mortgage calculations is this right?

Hi,
Am i right in doing this simple calculation. We have mortgage of €74000 over 5 years @ 4.95% tracker monthly repays €1394 and are considering a tracker of 4.5% repays of €1379. Are the savings i would make simply calculated by the difference between the 2 options ie €15 per month x term(ie 60 months = €900) providing interest rates stay the same?. BTW anyone going for a fixed rate would you advise that over the tracker? just wondering..
Thanks

You can use Karl Jeacle's mortgage calculator to compare the two options that you mention above.

There are lots of existing threads on the whole fixed versus tracker/variable question.