The Cardano network is designed to reward stackers approximately 4.2% of ADA coins per year from staked ADA coins. To reach this amount, you need to delegate to a pool that has good performance and fair fees. For the total yield you have to take into account compound interest. This means that the rewards earned will gradually increase the total amount of staked ADA coins. If you stake 10,000 ADA coins, you will receive 420 ADA coins per year. If you stake the same number of ADA coins for 5 years, you will receive 2,328 ADA coins.