Assuming 100% markup profit margin over baseline (common practice really) were looking at a baseline cost of $3 mil.
Now we need to factor in an encryption scheme that works across Windows, AIX, etc with enterprise support backing it up say $1.2 million to licence for all servers and locations (seem low but hey) and we have $1.8 million to spend.
Now we gotta pay people some prices to do that work so lets say $.5 million (500,000) so about $100 per man hour (bout right) and we have $1.3 to spend.
Now pay the electrical company for all that processing time (depending if they had THEM process it or they did it on their servers) at about $.5 million and we have $.8 million (800k) to explain.
Throw in some training for a few Ks to ensure the techs know how to handle the system lets say 100,000k for that (ouch! hey that is specializations ya know) 700K to go.
Maybe a little software rework (even if it wasnt really necessary) for another 100k and we have 600K to explain.
Opps forgot the "maintenance contract" which is often 10% of the sale price so 600k and lookie there, 6million blown pretty quick.
Thanks for shopping.