If you are a buyer, you would like to see the

appraisal price is higher than your buying price. Your lender will use the appraisal price as a reference, if your buying price is higher than the appraisal price, you might need to have more cash to pay the difference.

For example, the apprisial price is 900k, and you will pay 1M for a house. You are going to put 20% down and 80% from load. Your lender might only approval 80% of 900k, not 1M. Therefore, you will need to find out how you are going to pay the 80K difference.