Browsing by Author "Aulia, Nurul"

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    IMPLEMENTASI METODE SINGLE MOVING AVERAGE DALAM PERAMALAN PENJUALAN ACCESSORIES HANDPHONE DI RETRO CELLULER BANGKINANG
    (Elfitra, 2023-10) Aulia, Nurul; Alfirman, Alfirman
    Mobile accessories have many different types and functions to be able to help perfect the performance of the phone. Retro cellular Bangkinang is one of the places to provide sales of cellphone accessories. The store sells many types of cellphone accessories that make it difficult to control old inventory that is not sold. With so many types of cellphone accessories, the stock of goods is out of control. This is caused by an error in increasing the number of goods to the accumulation of stock of goods. Product forecasting is a form of inventory control so that the amount of inventory can be controlled. The method used to forecast sales of HP accessories using the single moving average method. The calculation data used is sales data for the last 12 months. The calculation is carried out using periods 5, 7, and 9. Then to measure the error rate that occurs after calculations using equations from MAD, MSE, and MAPE. The forecasting results can be in the form of the number of sales of goods that will be sold in June 2023. The smallest measuring value of the forecasting error rate is forecasting on PowerBank goods with MAD values of 0.99, MSE 1.42, and MAPE 4.24. The measurement value of the largest forecasting error rate is in the type of Case Motive goods with a value of MAD 218.51, MSE 59979.48, and MAPE 74.20.