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_21690339_1 (_percentage_cut VARCHAR, gas_storage VARCHAR)
### Question:
What wast the percent cut for the nation with an 80% full gas storage?
### Answer:
SELECT _percentage_cut FROM table_21690339_1 WHERE gas_storage = "80% full"