Because I'm trying to compute my rewards in USDD. ... @officialjustlend

For computing your rewards in USDD, you should use the Supply APY. This is because the Supply APY is the annual percentage yield (APY) earned by USDD holders on their USDD holdings. The Supply APY is calculated by taking the total amount of rewards earned by USDD holders over a given period and dividing it by the total amount of USDD held during that same period. This means that the higher the amount of USDD held, the higher the rewards earned. The Base APY, on the other hand, is the APY earned by USDD holders on their underlying asset holdings. This means that the Base APY does not take into account the amount of USDD held, and is therefore not suitable for computing your rewards in USDD.

For USDD, Supply APY