The current controllable margin for Henry Division is $108000. Its current operating assets are $300000. The division is considering purchasing equipment for $90000 that will increase annual controllable margin by an estimated $15000. If the equipment is purchased, what will happen to the return on investment for Henry Division?

A decrease of 14.46%

A decrease of 4.46%

A decrease of 7.60%

An increase of 13.89%