Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
During the period in which gross sales totals for "The Show Girl Must Go On" reached $2,628,457, what did the numbers show for tickets sold/ available at the box office?

### Inputs:
table_name: table, columns: ['Dates (MDY)', 'Gross Sales', 'Tickets Sold / Available', 'Shows / Sellout', 'Sellout (%)']

### Response:
SELECT Tickets Sold / Available FROM table WHERE Gross Sales = $2,628,457