Below is a table containing data on product demand for the most recent five months along with the forecasts that had been made for those 5 previous months. Use the 3-period simple moving average method to forecast the number of sales to expect next month.

Month	Demand	Forecast
1	308	341
2	388	343.3
3	344	364.7
4	400	346.7
5	341	377.3

Part 2.

Below is a table containing data on product demand for the most recent five months along with the forecasts that had been made for those 5 previous months. Use the 3-period weighted moving average method to forecast the number of sales to expect next month. Use the following weights: 0.4 for the most recent, 0.3 for the 2nd most recent, and 0.3 for the 3rd most recent.

Month	Demand	Forecast
1	308	337
2	388	341.4
3	344	368
4	400	342.8
5	341	378.4