# Hyperbridge Substrate Average transaction fee Methodology

## 1. Overview

Average transaction fee measures the average value paid by users per transaction on Hyperbridge Substrate. This metric provides insight into the typical cost of interacting with the network, including both native gas fees and protocol-specific fees associated with cross-chain messaging. It is calculated by dividing the total fees collected by the total number of transactions processed within a given timeframe.

## 2. Data sources

- **Blockchain events**: `TransactionFeePaid` events, `AccumulateFees` events from `relayer` pallets, and `FeePaid` events from `messagingFees` pallets on Hyperbridge Substrate
- **Blockchain instructions**: Unique extrinsics are tracked from Hyperbridge Substrate block data
- **External data**: End-of-day price feeds for native assets and stablecoins

## 3. Step-by-step calculation

### Component A: Native gas fee extraction

- **Purpose**: Capture the base fees and tips paid for transaction execution on the Hyperbridge Substrate chain.
- **Logic**: `TransactionFeePaid` events are parsed from the system events. The fee amount and the tip amount are extracted from the event data and summed to determine the total native fee per transaction. Amounts are normalized by the native decimal precision of 12.
- **Key fields**: `amount`, `tip`

### Component B: Bridge and relayer fee extraction

- **Purpose**: Capture specialized fees associated with the relayer and messaging infrastructure of Hyperbridge Substrate.
- **Logic**: `AccumulateFees` events from `relayer` pallets and `FeePaid` events from `messagingFees` pallets are parsed. These fees, often denominated in DAI, are extracted from the event data. Amounts are normalized by decimal precision to ensure consistency.
- **Key fields**: `amount`, `fee_type`

### Component C: Transaction volume tracking

- **Purpose**: Determine the total count of transactions to serve as the denominator for the average calculation.
- **Logic**: Every unique extrinsic (transaction) is identified and counted from the chain's extrinsic records. Successful execution is verified to ensure only valid transactions are included in the final count.
- **Key fields**: `extrinsic_id`

### Component D: USD normalization and average calculation

- **Purpose**: Convert all fee components to a common currency and calculate the final average.
- **Logic**: Native fees are multiplied by end-of-day price feeds for the native asset. Bridge fees denominated in stablecoins are treated as equivalent to USD or adjusted by relevant price feeds. Total daily fees (the sum of native gas, tips, and bridge fees) are divided by the daily transaction count. The resulting value represents the average transaction fee for the period.
- **Key fields**: `fees`, `transaction_count`

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

Average transaction fee

Blockchains (L1)

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Hyperbridge Substrate

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Average transaction fee

Average transaction fee

Chain breakdown