Potential calculator

The game calls it Enhance Potential: “Enhance Potential using Potential Enhance Materials.” The Potential Stone says it “unlocks the potential of gear that has been Soul Bound”. Each row of the ItemSurpass table is one step: SuccessProb (out of 10,000), FailCorrectionProb, the Kinah (CostGold) and materials (CostItems) of one try, and AdditionalStatName, the stats the gear has once it reaches that level. The last row has no chance: the game's “Reached Max Potential Level”.

The interface text is the same as for Enhance: “{0}% Success Chance” and “Success Chance increases by {0}% on failure”. So the model of the Enhance calculator applies: expected tries for a step with chance p rising by c after each failure is E = Σ_k≥0 Π_j<k (1 − min(1, p + j·c)); costs multiply each try's cost by it. ItemSurpass has no penalty column, so a failed try keeps the level (our reading).

In this client every Potential table that an item uses has SuccessProb 10,000 and no failure bonus, so the cost is exact: no luck is involved. The failure model only matters if a patch changes a table; the calculator already handles it, with percentiles and a budget check.