please help

Background: Malaysia is forecasting the Total Industry Volume (TIV) of new vehicles sold in 2013 for the following month: October, November, and December. Assume the current time is at the end of September 2013. Task: Given the Table of the past sales of the Total Industry Volume (TIV) of new vehicles in the last 21 month, forecast the Total Industry Volume (TIV) of new vehicles sold in 2013 for the following month: October, November, and December. Table 1: Actual Sales of Total Industry Volume (TIV) of New Vehicles in Malaysia Market Please specify which method you would use to forecast the demand of the new vehicles in Malaysia Market in October, November, and December 2013? (1) Please write down the calculation if possible. (2) Based on Part (2), Your forecasted demand for the new vehicles in Malaysia Market in October 2013 is: (3) Based on Part (2), Your forecasted demand for the new vehicles in Malaysia Market in November 2013 is: (4) Based on Part (2), Your forecasted demand for the new vehicles in Malaysia Market in December 2013 is