Suppose Sunita gets a sales bonus at her place of work that gives her an extra $600 of disposable income. She chooses to spend $480 and save the remaining $120. From this, you can tell that Sunita's marginal propensity to consume (MPC) is , and her marginal propensity to save (MPS) is _. Mathematically, it must always be true that: Disposable Income = Therefore, it must also be true that