Consider a hypothetical closed economy in which households spend $0.75 of each additional dollar they earn and save the remaining $0.25. The marginal propensity to consume (MPC) for this economy is , and the expenditure multiplier for this economy is. Suppose the government in this economy decides to decrease government purchases by $250 billion. The decrease in government purchases will lead to a decrease in income, generating an initial change in consumption equal to. This decreases income yet again, causing a second change in consumption equal to. The total change in demand resulting from the initial change in government spending is.