> For the complete documentation index, see [llms.txt](https://docs.syfu.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.syfu.io/rewards/formula.md).

# 5.3 Reward Formula

**Base Amount × Parameter Boost (Pararank & Charm) × Multi-holding Factor × Trust Rank Bonus × SyFu Card Bonus × Event Bonus × HP Reduction Factor × Payment Range Factor**

#### **Key Modifiers**

* **Parameter Boost**: Increased efficiency from Pararank and Charm.
* **Multi-holding Factor**: √N diminishing returns to prevent short-term imbalance.\
  (Multi-holding factor will be implemented in the future.)
* **Trust Rank Bonus**: Rewards and caps vary by Trust Rank (S–D).
* **SyFu Card Bonus**: Special cardholder benefits.
* **Event Bonus**: Temporary campaign multipliers.
* **Payment Range Factor**: Adjustments based on the payment tiers above.

> 💡 **Additional Link** \
> For detailed information on reward efficiency based on MANEKINEKO’s remaining HP (coefficient table) and HP consumption, please refer to [6.5 MANEKINEKO NFT Lifespan, HP, and Durability](/manekineko/manekineko-nft-lifespan-hp-durability.md).

***

#### When using KOZUCHI

For a BIND linked to a Check-in that used KOZUCHI, the payment amount cap used to calculate rewards increases from USD 100 to USD 150. KOZUCHI does not apply a flat 1.5× multiplier to the entire reward.

KOZUCHI is available only to users with Trust Rank S or higher. BIND limits, including daily and monthly limits, take precedence. KOZUCHI does not let you exceed those limits or your remaining allowance.

For details, see [How to Use KOZUCHI](/rewards/kozuchi.md).