From Linear Trend Equation; F = a + bt Ft = Demand volume of Year t t = The number of Year a = Value of F at t = 0 b = Slope of the line We can get the number of Year 5 forecasting by formulating the linear equation. We can calculate a and b by using the below formulas; h = n(t Ft) t. Ft t2 - ()2 a = Ft-bt n Year (t) +2 Demand (F.) t-Ft 1 1 457,949 457,949 2 4 487,441 974,882 3 9 538,654 1,615,962 4 16 551,139 2,204,556 10 30 2,035,183 5,253,349 100 Table 2: The Linear Trend Equation Calculation