Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_23802822_1 ( _receipts VARCHAR, _or_shipments__$1 VARCHAR, sales INTEGER, establishments VARCHAR )

### Question ###
If the establishment is 49319, what is the sales, receipts or shipments maximum amount?

### Accurate SQL ###

SELECT MAX(sales), _receipts, _or_shipments__$1, 000 AS _ FROM table_23802822_1 WHERE establishments = 49319