# Assets Discount Ratio

Assets held in cross-margin accounts are converted to USD and used as margin. To manage the inherent risks of currency market fluctuations, Drake calculates the real USD value of each asset using discount rates. These discount rates help mitigate market risks, ensuring more stable and secure margin calculations. The current discount rates for various currencies are detailed in the table below and are subject to periodic adjustments based on real-time market conditions:

| Asset   | Tier (USD)            | Discount Ratio |
| ------- | --------------------- | -------------- |
| BTC,ETH | 0\~100,000            | 0.95           |
|         | 100,000 \~ 500,000    | 0.85           |
|         | 500,000 \~1,000,000   | 0.75           |
|         | >1,000,000            | 0.00           |
| USDC    | 0\~200,000            | 1.00           |
|         | 200,000,\~ 1,000,000  | 0.95           |
|         | 1,000,000 \~2,000,000 | 0.90           |
|         | >2,000,000            | 0.00           |


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