
Refining Masterclass: City RRR Mathematics & Multi-Tier Optimization
Refining is the process of converting raw resources into usable blocks, bars, leather, or cloth. Doing this in the wrong city will lead to negative profit margins. Doing it in the bonus city with Focus yields massive wealth.
Resource Return Rate (RRR) Explained
The Resource Return Rate (RRR) determines the percentage of raw materials you get back after refining. Here are the base vs focus RRR values in a bonus city:
- Without Focus (Bonus City): **36.7% RRR**
- With Focus (Bonus City): **53.9% RRR**
This means that with Focus, you get more than half of your raw materials back, allowing you to cycle your materials multiple times. Always buy raw materials in bulk in their native gathering cities, transport them to the refining bonus city, and use your daily focus to refine them.
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