# Frequently Asked Questions

# Dust

### How is the dust salvaged from items calculated?

> salvage dust = rarity base (2/5/8/12/25) × depth scale, then dust boost. depth scale is floor(base × (1 + log10(1 + depth/10)) × (1 + 0.12 × log10(1 + depth/100)))

<p class="callout danger">[🔗 Dev Source: Discord](https://discord.com/channels/1522545357785927793/1523053528493457539/1538987550062936275)</p>

This probably isn't a correct calculation because it doesn't scale correctly (somehow). @grinalda on the Just Loot Discord figured out a cleaner way to solve for the salvaged dust:

> I got it to work tho, rounddown((base x depth scale) +(base x depth scale x raid xp % gain),0)

<p class="callout info">[🔗 Community Source: Discord](https://discord.com/channels/1522545357785927793/1523053528493457539/1538995096299507754)</p>

<iframe height="600" src="https://justloot.wiki/uploads/images/system/2026-08/salvage_dust_chart.html" width="100%"></iframe>