Suppose a four period weighted average is being used to forecast demand. Weights for the periods are: Wt-4 = 0.1 Wt-3 = 0.2 Wt-2 = 0.3 Wt-1 = 0.4 Demand observed in the previous four periods was: At-4 = 256 At-3 = 370 At-2 = 363 At-1 = 417 What will be the demand forecast for period t? (Keep one decimal place in your answer)