INVENTORIES

The major components of inventory were as follows:



(amounts in millions)	September 30, 2015		December 31, 2014
Finished goods	$	321.4	$	156.3
Work in process	16.8		—
Raw materials and supplies	128.7		49.5
Total inventory, net	$	466.9	$	205.8

In connection with the Arysta Acquisition, finished goods inventory was increased to reflect fair value. The step-up became fully amortized during the three months ended September 30, 2015. For the three and nine months ended September 30, 2015, $1.3 million and $37.8 million, respectively, was charged to cost of sales in the Condensed Consolidated Statement of Operations.

The CAS inventory step-up became fully amortized during the three months ended March 31, 2015. For the nine months ended September 30, 2015, $20.2 million was charged to cost of sales in the Condensed Consolidated Statement of Operations in connection with the CAS Acquisition.

The MacDermid inventory step-up became fully amortized during the three months ended March 31, 2014. For the nine months ended September 30, 2014, $12.0 million was charged to cost of sales in the Condensed Consolidated Statement of Operations in connection with the MacDermid Acquisition.