Given the following demand numbers, create a forecast for April through January of the following year. The forecast demand for a time period is the average of the previous three time periods. This is called a three-period moving average.

The following table contains the demand numbers and the forecast. Use Excel to calculate the values in the Forecast column. You will need to copy and paste the information highlighted in yellow into an excel spreadsheet. A spreadsheet without formulas will not receive any credit.

Month	Demand	Forecast
January	119
February	72
March	113
April	82	101
May	82	89
June	131	92
July	111	98
August	116	108
September	89	119
October	95	105
November	88	100
December	90	91
January		91