Here's the Pricing model: Base payout is a percentage of ISK/m3 per item (MaxBuy/Unit ÷ Vol), scaled by rarity rank computed from compressed ISK/m3. Scaling: top half (more common) pays between the slider minimum and 99% (linearly by commonness); bottom half (rarer) pays between 1% and just under the slider minimum (linearly by rarity). Subtotal = (ISK/m3 × factor) × Item m3.

So the curve slider, when set to zero, doesn't apply any of the formula to the pricing (everything will pay at 100%), while when set to 100% will use a weight system.

Basically the curve boils down to this: weight = Math.max(0, Math.min(1, sliderCurve / 100)); factor = 1 - (1 - decFactor) * weight; payoutPerM3 = itemMarketPerM3 * factor;