Resource return rate calculator

Resource return rates for crafting Hardened Leather: the share of materials each city returns, with and without Focus. It needs 3 × Robust Hide, 1 × Beastheart, and 1 × Cured Leather. Martlock returns 36.7% of the materials, 53.9% with Focus; the other cities return 15.3% of the materials, 43.5% with Focus. Hardened Leather: Crafting materials / Refined Resources / Leather, Tier 6.