Weston Products manufactures an industrial cleaning compound that goes through three processing departments$-$Grinding, Mixing, and Cooking. All raw materials are introduced at the start of work in the Grinding Department. The Work in Process T$-$account for the Grinding Department for May is given below:

$\backslash$table$[[$Work in Process$-$Grinding Department$],[$Debit$,,$Credit,$],[$Inventory$,$ May $1,116,340,$Completed and transferred,$],[$Materials$,670,470,$to the Mixing Department,$],[$Conversion$,414,384,,?$