Inventories

Inventories consisted of the following components as of September 30, 2015 and June 30, 2015:



($ in millions)	September 30, 2015		June 30, 2015
Raw materials and supplies	$	141.5	$	121.7
Work in process	341.0		346.1
Finished and purchased products	204.2		188.0
Total inventory	$	686.7	$	655.8

Inventories are valued at the lower of cost or market. Cost for inventories is principally determined using the last-in, first-out (“LIFO”) method. The Company also uses the first-in, first-out (“FIFO”) and average costs methods.