rutgers appliance parts company showed a $12 million average annual inventory at the end of 2021, based on an annual inventory purchases totaling $60 million. the vp of procurement believes that by utilizing smarter procurement and supply management techniques, inventory carrying expense can be lowered by increasing inventory turns. assuming an inventory carrying charge of 25%, and assuming the same dollar volume of inventory purchases, what would be the annual inventory carrying expense savings if turns were tripled by the end of 2022?