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# OKX Average transaction fee Methodology

## 1. Overview

Average transaction fee measures the average fee users pay per transaction. It reflects how much it typically costs to use the network. This metric is utilized to evaluate the economic efficiency and cost competitiveness of the network. The average transaction fee is calculated by dividing the total transaction fees (comprising both L2 execution fees and L1 data fees) by the total number of transactions executed on the network.

## 2. Data sources

- **Blockchain events**: Transaction execution data including gas usage, gas prices, and L1 data fee parameters from transactions on X Layer, covering X Layer
- **External data**: End-of-day price feeds for the native gas asset (OKB)

## 3. Step-by-step calculation

### Component A: Transaction fee extraction

- **Purpose**: Calculate the total transaction fees paid on the network, including L2 execution and L1 data fees
- **Logic**: Gas usage and gas prices are extracted from transaction receipts. The L2 execution fee is calculated by multiplying the gas used by the gas price. The L1 data fee is represented by the direct L1 fee or calculated by multiplying the L1 gas used, L1 gas price, and the L1 fee scalar. Both fee components are normalized by decimal precision to represent the values in the native gas asset (OKB).
- **Key fields**: `gas_used`, `gas_price`, `l1_fee`, `l1_gas_used`, `l1_gas_price`, `l1_fee_scalar`

### Component B: USD conversion and fee aggregation

- **Purpose**: Convert the total daily transaction fees into USD
- **Logic**: The L2 execution fees and L1 data fees are summed to determine the total daily fees in the native gas asset. These daily fee amounts are then multiplied by the end-of-day price of the native gas asset (OKB) to convert the values to USD.
- **Key fields**: `fees`, `price_usd`

### Component C: Transaction count aggregation

- **Purpose**: Calculate the total number of transactions executed on the network daily
- **Logic**: The total number of unique transaction hashes is aggregated on a daily basis to determine the daily transaction count.
- **Key fields**: `transaction_hash`

### Component D: Average transaction fee calculation

- **Purpose**: Determine the average fee paid per transaction
- **Logic**: The total daily transaction fees in USD are divided by the total daily transaction count. Daily granularity is maintained with UTC day boundaries.
- **Key fields**: `fees`, `transaction_count`

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

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Average transaction fee

Average transaction fee

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