The components of inventory, net of allowance for obsolete, unmarketable or slow-moving inventories, are summarized as follows:

 

(in millions)		As of July 31, 2016				As of July 31, 2015
Raw materials		$	68.6			$	64.5
Work in process			45.6				46.0
Finished goods			31.3				22.2
Total inventory		$	145.5			$	132.7