Calculation for new unit points

[ChaoticKitten]

How are unit prices calculated?
Admittedly, I've overdone a tank unit and it came up with a whopping 100k cost[X(]. Is there a way to force a price?
And more importantly, do we know how these prices are calculated?

I've used the database editor and not anything else.

[Veitikka]

The unit base cost consists of the movement speed, number of men, armor, thermal imaging, weapons and ammunition, 2-plane stabilizer, and radar.

The unit 'value' attribute overrides the automatically calculated cost.