Gold Refinery
| Upgrade costs L0 -> L1 | |||
|---|---|---|---|
| Product | Quantity | Market price | Total costs |
 Credits |
1 000 000 000 | 1 | 1.00G |
 Concrete |
20 000 | 5 090 | 117M |
 Steel |
20 000 | 49 975 | 1.15G |
 Glass |
20 000 | 48 815 | 1.12G |
| 3.39G ROI: 12.3d |
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