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Blockchains (L2)

Rootstock

# Rootstock Average fees per user (AFPU) Methodology

## 1. Overview

Average fees per user (AFPU) measures the average value of transaction fees paid by an individual active user on Rootstock over a 24-hour period. This metric provides insight into the daily cost of interaction for users and the economic throughput of the network relative to its user base. Average fees per user (AFPU) is calculated by dividing the total daily fees by the number of active users (daily).

## 2. Data sources

- **Blockchain events**: Native transaction data including gas usage and gas prices, covering Rootstock
- **Fees**: Derived from the Fees metric
- **Active users (daily)**: Derived from the Active users (daily) metric
- **External data**: End-of-day price feeds for the native asset (RBTC)

## 3. Step-by-step calculation

### Component A: Fee extraction

- **Purpose**: To identify and calculate the total cost of executing transactions on the network
- **Logic**: Native transaction records are parsed to retrieve the amount of gas used and the gas price associated with each transaction. Because Rootstock utilizes a pre-EIP-1559 fee model, the total fee per transaction is calculated by multiplying the gas used by the gas price.
- **Key fields**: `receipt_gas_used`, `gas_price`

### Component B: Active user identification

- **Purpose**: To determine the count of unique participants interacting with the network daily
- **Logic**: User addresses are identified from the transaction sender field of all recorded transactions. A distinct count of these addresses is performed over a UTC-aligned 24-hour window to determine the number of active users (daily).
- **Key fields**: `from_address`

### Component C: USD normalization and aggregation

- **Purpose**: To convert native fee values into a standardized currency for analysis
- **Logic**: Total daily fees, originally denominated in the native RBTC asset, are normalized by decimal precision. These values are then multiplied by end-of-day price feeds to determine the total daily fee volume in USD.
- **Key fields**: `block_timestamp`, `fee_amount`, `price_usd`

### Component D: Final AFPU calculation

- **Purpose**: To derive the average expenditure per user
- **Logic**: The total daily fees in USD are divided by the total number of distinct active users (daily). This calculation results in the average fees per user (AFPU) for each 24-hour period, which is then recorded at a daily granularity.

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

RootstockRIF

Average fees per user (AFPU)

Average fees per user (AFPU)

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