The Sleepyhead Chair Company manufactures a standard recliner. During February, the firm's Assembly Department started production of 75,000 chairs. During the month, the firm completed 85,000 chairs and transferred them to the Finishing Department. The firm ended the month with 10,000 chairs in ending inventory. How many chairs were in inventory at the beginning of the month? The system only recognizes the number. Please do not include a dollar sign, other text, or commas separator and keep O decimal place. e.g., 12345