is a Small and Medium Enterprises (UKM) located in the village of Loram Kulon, Jati Sub District, Kudus Regency. The amount of effort makes everyone compete to be the best to get customers. When business owners cannot use information technology, a lot of information is wasted. Forms of manual reporting make it difficult for the owner to see the development of the business, as a result the owner can make mistakes in making decisions, especially for the addition or reduction of the stock. Forecasting is an estimate of the level of demand for one or more products over the coming periods. In forecasting the estimated level of demand in order to avoid excesses and not less inventory quantities based on past sales. Decision support investigated to predict the number of sales using the single moving average method. The Single Moving Average method uses a number of actual data requests to generate forecast values. The calculation is done by taking a group of values or data and then calculating the average and with the average used to calculate the next period forecast. from the results of the prediction or calculation, bag sales can be used to make policies in the production of bags, so that the owner gets information for the production of bags in the following month, or in certain months according to the results of predictions bag sales.