Suppose you buy one SPX call option with a strike of 1,295 and write one SPX call option with a strike of 1,320. What are the "per share" (i.e., per unit) payoffs at maturity to this position for S&P 500 Index levels of 1350, 1400, 1450, 1500, and 1550? (Negative answers should be indicated by a minus sign. Leave no cells blank - be certain to enter "0" wherever required.) Long call payoff Short call payoff Total payoff Index level 1350 1400 1450 1500 III 1550