| Grams | G | Weight in grams | Number |
| Count | N | Number of pieces | Number |
| Cost prototype | Pr | Cost in euros for each prototype | Number |
| Cost mold | Mo | Cost in euros of mold | Number |
| Cost foundry | Fo | Cost in euros per smelting each piece | Number |
| Cost material | Ma | Material cost in €/gram | Number |
| Other costs | Ot | Other possible costs (such as postage, polished, gems...) | Number |
| Cost per hour | eH | Price in euros per hour from designer | Number |
| Hours | Ho | Hours in decimal numbers of designer work | Number |
| Gain | Ga | Gross profit as percentage that seeks to gain | Number |