Siesta Shutters manufactures window and door shutters. They buy $280000$ plastic

guides per year to insert in the shutter tracks. The cost of placing the order is $3,250$ per

order and the carrying cost is estimated at $2\mathrm{.}15$ per button per year. The lead time is

$10$ working days and you can assume $250$ working days per year.

You are required to calculate the EOQ step by step answer