X is the remaining production cost of the item. Y = floor(X^1.1).
Galactic Manufacturing Corp.: 6Y
Terran Manufacturing: 4Y, plus 1+floor(Y/5) per week for floor(Y^0.61) weeks.
United Builders, Inc.: 2Y+50, plus 2+floor(3X^0.55) per week for floor(Y^0.6+22.3) weeks.
Mitrosoft: Y+50, plus 1+floor(Y^0.55) per week for ceil(1.5Y^0.8+141.5) weeks.
The United Builders per-week value is sometimes 1 too small (it's probably really some function of Y, but the obvious Y^0.5 actually does a worse job of fitting the data); otherwise these formulas appear to be accurate for Suicidal difficulty. (Thank you, Iconians, for being a sufficiently feeble opponent so I could gather the data necessary to infer these formulas.
)
For lower difficulties, the lease length for United Builders, Inc. and Mitrosoft are reduced; there are no other changes.
