Gee, stack the deck much?
If you are talking about about
general "price deflation," then the costs to which you refer will NOT be fixed. General "price deflation" will apply just as much to the prices involved in production (capital, labor, etc.) as it will to the prices of the goods being produced. (The same thing applies in other direction, with respect to general "price inflation.")
Otherwise, you are not talking about general "price deflation" ... (I mean, come on ...)
+rep to the others who called you out for your shenanigans. (Did you really expect to get away with it?)
(
You must spread some Reputation around before giving it to Suzanimal again. :o)