Operations management help needed, plz double check your answer and provide explanation if possible thanks.

Albert has tracked the sales of his new Gator Scooters over the last ten weeks. Forecast demand using exponential smoothing with an alpha of 0.3, and an initial forecast of 30.0 for period 1 . He would like to know the tracking signal so he can plan accordingly. What is the tracking signal for all of the periods forecast with exponential smoothing (i.e. use periods 210 and exclude period 1 because it was not forecast with exponential smoothing). Choose the closest