> For the complete documentation index, see [llms.txt](https://docs-old.zipclash.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-old.zipclash.io/zipclash-goodies/c-s-economic-model.md).

# C/S Economic Model

C/S Economic model The income is based on CoinPerSecond (C/S), which is defined as the number of coins you generate per second; the more C/S you have, you will have the better return on your investment and income. Similarly, if you want to upgrade your planet in any format, the cost of the upgrade will be calculated according to your C/S. If you have a high C/S, you have to spend a higher amount of coins to perform each upgrade.

<figure><img src="https://zipclash.io/whitepaper/images/b/b/7/4/a/bb74a145a4b5f1feff06fb1798586abd0fe12695-cs-economy-model.jpg" alt=""><figcaption></figcaption></figure>


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