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# OKX Average fees per user (AFPU) Methodology

## 1. Overview

Average fees per user (AFPU) is utilized to measure the average transaction fees paid per active user over a fixed 24-hour window. The metric is calculated as total daily fees divided by active users (daily), reflecting the daily cost incurred by an individual user for utilizing the network's services. Network activity, economic throughput, and user cost-efficiency on X Layer are evaluated through this metric.

## 2. Data sources

- **Fees**: Derived from the Fees metric
- **Active users (daily)**: Derived from the Active users (daily) metric

## 3. Step-by-step calculation

### Component A: Transaction fee calculation

- **Purpose**: The determination of total daily transaction fees paid on X Layer
- **Logic**: Transaction fees are calculated by summing the Layer 2 (L2) execution gas fees and the Layer 1 (L1) data fees. L2 gas fees are calculated by multiplying the gas used by the gas price. L1 gas fees are represented by the direct L1 fee, or calculated by multiplying the L1 gas used, L1 gas price, and the L1 fee scalar when the direct L1 fee is not populated. These fee components are summed, normalized by decimal precision, and converted to USD using end-of-day price feeds for the native gas asset (OKB).
- **Key fields**: `gas_used`, `gas_price`, `l1_gas_used`, `l1_gas_price`, `l1_fee_scalar`, `l1_fee`, `token_address`

### Component B: Daily active user tracking

- **Purpose**: The identification of unique active users interacting with the network daily
- **Logic**: active users (daily) are identified by extracting unique transaction senders from the transaction history. The sender address is captured from the transaction metadata for each transaction. Unique addresses are aggregated daily to determine the active users (daily).
- **Key fields**: `from_address`, `block_timestamp`

### Component C: Average fees per user calculation

- **Purpose**: The calculation of the average fee paid per active user
- **Logic**: The total daily transaction fees in USD are divided by the active users (daily). A division of the daily fee aggregate by the daily active user count is performed for each day. If no activity is recorded, the metric is populated with a value of zero.
- **Key fields**: `fees`, `user_dau`

*This methodology was automatically generated by Token Terminal's methodology analyzer.*

OKXOKB

Average fees per user (AFPU)

Average fees per user (AFPU)

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