text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  CREATE TABLE table_name_51 (change___percentage_ INTEGER, land_area__km²_ VARCHAR, population_density__per_km²_ VARCHAR)
  ### Question:
  What is the average change to have a land area of 546.74 and a population density greater than 0.5?
  ### Answer:
  SELECT AVG(change___percentage_) FROM table_name_51 WHERE land_area__km²_ = 546.74 AND population_density__per_km²_ > 0.5