Abstract:
PT Inti Indosawit Subur has varios yields of palm oil each year. The research was
conducted with the stages of analyzing data needs, collecting data and forecasting with
the Decomposition Method. In the Decomposition Method, there are four stages of
calculation in the Decomposition Method, namely looking for Trend values, Seasonal
Index, and Cyclic Variation, and error values. Manual calculations and system testing
resulted in output where the first quarter amounted to 152607,635, the second quarter
amounted to 175377,875, the third quarter amounted to 248788,019, and the fourth
quarter amounted to 255027,911 with a the forecasting results are tested by tracking
signal. The tracking signal value in this oil palm forecasting that is of -4 because the
tracking signal value is in the range of -4 to +4, so it can be concluded that the forecasting
of oil palm yields at PT Inti Indosawit Subur using the Decomposition Method is valid.
