The expected annual return is estimated by multiplying 365 with the expected daily return which considers impermanent loss and pool rewards of each day (or mean value of the actual daily return) of the last 20 days.
Return=pool_valTββpool_valTβ1β+daily_pool_rewardTβ Exp_Return=Nβi=1Nβpool_valiββpool_valiβ1β+daily_pool_rewardiββ pool_val=(token_priceAβΓamtAβ)+(token_priceBβΓamtBβ) amt=2Γtoken_pricepool_valβ amt0β=2Γtoken_price100β