calculating bid value ?

You evaluate a vendor bid of $350. There is 65% probability that vendor will be behind schedule costing 125 and 35% probability of
doing early with a savings of 50. What is the total value of final bid


63.750
286.250
448.75
413.75


413.750 is shown as correct answer. But Im getting it as  negative - 413.75, considering 350 as outflow.


 Please explain how to get the correct answer?

 it is bid value - an expected monetory value. it is not any profit or loss

350+0.65*125-0.35*50 = 413.75

this part ( +0.65*125 - 0.35*50), net impact of probability over estimated value.