For every dollar of sales charged to a certain bank credit card, a department store must pay $0.003 to the bank that issued the credit card. What percentage of the department store's sales transactions last month were credit card transactions?
(1) The store made 2,000 sales last month.
(2) The store took in a total of $250,000 last month and paid $300 to the bank that issued the credit card.
(1) The store made 2,000 sales last month.
(2) The store took in a total of $250,000 last month and paid $300 to the bank that issued the credit card.