What are the total sales of the accumulated orders of Hon Valutask Swivel Chairs in the West region?
'Hon Valutask Swivel Chairs' is the "Product Name"
SELECT SUM(T1.Sales) FROM west_superstore AS T1 INNER JOIN product AS T2 ON T1.`Product ID` = T2.`Product ID` WHERE T2.`Product Name` = 'Hon Valutask Swivel Chairs' AND T1.Region = 'West'