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_73 (natural_change__per_1000_ VARCHAR, live_births_1 VARCHAR)
### Question:
what is the natural change (per 1000) when the live births 1 is 278 977?
### Answer:
SELECT natural_change__per_1000_ FROM table_name_73 WHERE live_births_1 = "278 977"