suppose the marginal propensity to save (mps) is equal to 0.25. according to the text, a $100 increase in investment spending will lead to a: please choose the correct answer from the following choices, and then select the submit answer button. answer choices total increase in spending of $100 because an increase in investment spending does not create a multiplier effect. $100 increase in spending in the first round, and a total increase in spending of $250. $50 increase in spending in the first round, and a total increase in spending of $400. $100 increase in spending in the first round, and a total increase in spending of $400.