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Aventus

# Aventus Average fees per user (AFPU) Methodology

## 1. Overview

Average fees per user (AFPU) measures the fees paid per active user over a fixed 24-hour window. It is calculated as total daily fees divided by active users (daily), and reflects how much an individual user pays for the project’s service on a daily basis. Native Aventus chain transactions are combined with EVM-compatible transactions to capture the full user base across both execution environments.

## 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: Fee data extraction and aggregation

- **Purpose**: Extract and aggregate daily transaction fees paid on the Aventus network in USD
- **Logic**: Fee data is extracted from both Layer 1 and Layer 2 execution environments on the Aventus network. For Layer 1, successful `TransactionFeePaid` events are parsed to extract the base fee `amount` and validator `tip` values. For Layer 2, transaction fees are calculated from `Withdraw` and `Deposit` events within the `balances` pallet of the EVM environment, where the transaction fee is determined by the net difference of withdraw and deposit amounts for the transaction signer. Signer addresses are matched by mapping native Substrate accounts to EVM accounts using a Keccak-256 hash. All fee amounts are normalized by decimal precision, summed daily, and converted to USD using end-of-day price feeds for the Aventus asset.
- **Key fields**: `amount`, `tip`, `transaction_fee`, `block_timestamp`

### Component B: Daily active user calculation

- **Purpose**: Count distinct users interacting with the Aventus network daily across both native and EVM environments
- **Logic**: active users (daily) are identified across both native and EVM environments on the Aventus network. Native users are captured as transaction senders from Aventus extrinsics. EVM users are identified by parsing the user address from `Executed` events emitted by the `evm` pallet. All unique user addresses are aggregated daily to determine the count of active users (daily).
- **Key fields**: `user_address`, `block_timestamp`

### Component C: Average fees per user calculation

- **Purpose**: Calculate the average fees paid per active user on a daily basis
- **Logic**: Average fees per user (AFPU) is calculated by dividing the total daily fees in USD by the active users (daily). The calculation is performed at a daily granularity. A timestamp filter is applied to restrict the final dataset to dates on or before September 24, 2026. Missing daily values are filled with zeros to ensure a continuous time series.
- **Key fields**: `fees`, `user_dau`, `timestamp`

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

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Average fees per user (AFPU)

Average fees per user (AFPU)

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