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How the Math Works
The whole point of this tool is numbers you can defend. Here is exactly what it computes — and the cost engine is validated against the live EVE Ref industry-cost API in CI on every change.
jobFee = EIV × (SCI × structureFeeBonus + facilityTax + SCC + alphaTax)
- EIV — estimated item value: Σ (base material qty × CCP adjusted price). ME does not change it.
- SCI — the system cost index for the activity, fetched live from ESI.
- SCC surcharge — 4% (manufacturing, invention & reactions; the 2025 research-only cut doesn't apply here).
- alpha tax — 0.25% when your clone state is Alpha.
- Invention/copy jobs charge over a 2%-of-EIV job-cost base.
| Structure | ME | TE | Job fee |
|---|---|---|---|
| NPC station | — | — | — |
| Raitaru | 1% | 15% | −3% |
| Azbel | 1% | 20% | −4% |
| Sotiyo | 1% | 30% | −5% |
ME rigs: T1 = 2%, T2 = 2.4%, multiplied by security — high-sec ×1.0, low-sec ×1.9, null/WH ×2.1. Rigs only exist in player structures. Material need per run: ceil(base × (1−ME/100) × (1−structME) × (1−rigME)), floored at 1 per run.
- Sales tax = 7.5% × (1 − 0.11 × Accounting) — the March-2025 regime.
- Broker fee (NPC) = 3% − 0.3%×Broker Relations − 0.03%×faction standing − 0.02%×corp standing; player structure = 0.5% + the structure's set rate.
P = base × (1 + Encryption/40 + (Science1+Science2)/30) × decryptorMod, capped at 100%. Expected cost per BPC = cost per attempt ÷ P; invented BPCs start at ME 2 / TE 4 (T2 and T3 alike). T3 relic tiers set base odds and runs; the relic price rides every attempt.
Market prices use the 5%-by-volume percentile — the realistic "fill the order book" price, not the optimistic midpoint most calculators quote. Ore in reprocess comparisons uses the volume-weighted median of the ask side, so a single troll order can't fake a deal. Fuzzwork aggregates are the source, with an automatic fallback that recomputes the same stats from raw ESI order books when Fuzzwork is down.
Lines per pool = 1 + skill + advanced skill: Mass Production (+Advanced) for manufacturing, Laboratory Operation (+Advanced) for science, Mass Reactions (+Advanced) for reactions.