# APR Calculation

## Introduction

APR for each pools is a metric that indicates the expected annualized return on investment for liquidity providers. APRs are calculated differently for CL pools and normal pools due to their distinct operational mechanisms.

## Concentrated Liquidity Pools

### Calculation:

**APR for CL Pools**: Where:**Spread Reward per Unit Liquidity**: This is the reward earned from the spread for providing liquidity, expressed per unit.**Incentive Reward per Unit Liquidity**: This is any additional incentive reward for providing liquidity, also expressed per unit.**Base Price**: The standardized value of one unit of liquidity in the pool, used to convert the reward values into a comparable base.**Seconds in a Year**: Represents the total number of seconds in a year, used for annualizing the return. It's calculated as ( 365.25 \times 24 \times 60 \times 60 ) to account for leap years.**Calculation Time Duration**: The duration in seconds over which the rewards were calculated

## CFMM Liquidity Pools(Balancer pools, Stableswap Pools)

**Standard APR Calculation**(for 1 day, 7 days, and 14 days):- The APR is calculated for each time frame using the formula:
- Where:
`Distribured Amount_timeframe`

is the sum of distributed rewards for the time frame (1 day, 7 days, or 14 days).`Exponent`

is a factor related to the coin denomination.`Liquidity`

is the total liquidity in USD for the pool, adjusted by the percentage bonded (if applicable).`Coin Price`

is the current price of the coin.- The multiplier (36500) annualizes the rate.

**Superfluid APR Calculation**(if applicable):- The Superfluid APR is calculated additionally for pools where it's relevant, using the formula:
- Where:
- (\text{Staking APR}) is the APR from staking.
`Superfluid Percentage`

is the percentage of the pool that is superfluid.`Superfluid Risk Factor`

is a risk adjustment factor.`APR_14d`

is the 14-day APR calculated as above.