Help with formula that I can`t figure out

Hi
Im using Excel X (an older version prior Excel 2003) and I need to change a price list with a formula (I think...)
To each price I need to add 120% + $91. To this number I need to add +3% x3%.....all in one formula.
Example of what I`m doing manually now. Starting price is $243.

$243x120%= $291.6
291.6+91= $382.6
382.6+3%x3%= $11.82
382.6+11.82= $394.42

$394.42 is the adjusted number I need.

What`s the correct formula to do this? Is it possible to apply the formula to the entire price list at once, and how you do it? Lastly instead of creating a new list of price next to the first I would like the original price list to change in to the new results from the formula calculation.
I have limited Excel knowledge so please be as clear and specific as possible.
Thank you so much for your help

Robert