Your lathe department has nine CNC lathes. Your products are made in batches of 100 parts, and each batch requires 8 hours of setup. Operation time per part is 6.0 minutes. You run six 8 hour days per week, but 15% of that time is lost due to machine breakdowns. One operator can run three lathes, so you have three operators. The operators do not do their own setups; instead, setup specialists do the setups. You have two setup specialists. What is your maximum production rate, in terms of parts per week?