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_22 (firefox VARCHAR, internet_explorer VARCHAR)
### Question:
What percentage of users were using Firefox according to the source that reported 21.70% used Internet Explorer?
### Answer:
SELECT firefox FROM table_name_22 WHERE internet_explorer = "21.70%"