Bold$$ Vision, Inc., makes laser printer and photocopier toner cartridges. The demand rate is $630$ EP cartridges per week. The production rate is $1$ comma $738$ EP cartridges per$$ week, and the setup cost is $$$$90.$ The value of inventory is $$$$140$ per$$ unit, and the holding cost is $20$ percent of the inventory value. Bold Vision operates $52$ weeks per year. What is the economic production lot$$ size?

Part $2$

The economic production lot size is

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