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

### Instruction:
Who many dates are in position 9 and the sellout is 81%?

### Inputs:
table_name: table, columns: ['Dates (MDY)', 'Position', 'Gross sales', 'Tickets sold / available', 'Sellout (%)']

### Response:
SELECT COUNT Dates (MDY) FROM table WHERE Position = 9 AND Sellout (%) = 81%