APY Calculation

What is APY?

APY stands for annual percentage yield. It measures the real rate of return on your principal by taking into account the effect of compounding interest. In the case of $LIFE, your staked $LIFE represents your principal, and the compound interest is added periodically on every epoch (8 hours) thanks to the rebase mechanism.

One interesting fact about APY is that your balance will grow not linearly but exponentially over time! Assuming a daily compound interest of 2%, if you start with a balance of 1 $LIFE on day 1, after a year, your balance will grow to about 1377.

How is APY calculated ?

The APY is calculated from the reward yield (a.k.a rebase rate) using the following equation:

$$APY=( 1+RewardYield)^{1095}$$

It raises to the power of 1095 because a rebase happens 3 times daily. Consider there are 365 days in a year, this would give a rebase frequency of 365 * 3 = 1095.

Reward yield is determined by the following equation:

rewardYield=$Lifedistributed

The number of $LIFE distributed to the staking contract is calculated from $LIFE total supply using the following equation:

rewardRate$LIFE_{distributed} = $LIFE_ {totalSupply} \times rewardRate

Note that the reward rate is subject to change by the protocol.