The APY (annual percentage yield) is an estimate of the return on investment you can expect from staking your WIN tokens. It is important to remember that the APY is dynamic and can change over time, so it is important to keep an eye on it. Additionally, the APY is divided into two components: Base Supply APY and Mining APY. The Base Supply APY is the return on investment you can expect from staking your tokens, while the Mining APY is the return on investment you can expect from mining activities. Therefore, when you staked 650$ worth of WIN tokens, the APY was estimated to be around 14%. After 1 month, you should have expected to gain around 7$, however you only gained 0.37$. This could be due to the APY changing over time, or it could be due to the Mining APY being lower than the Base Supply APY. It is important to keep an eye on the APY to make sure you are getting the best return on investment.