Assignment ID: FG133136826
Question – You are given the following budgeted and actual data for the Grey Company for each of the months January through June of the current year.
In December of the prior year, sales were forecasted as follows: January, 98 units; February, 93 units; March, 100 units; April, 105 units; May, 112 units; June, 120 units. In January of the current year, sales for the months February through June were reforecasted as follows: February, 88 units; March, 100 units; April, 100 units; May, 102 units; June, 115 units. In February of the current year, sales for the months March through June were reforecasted as follows: March, 95 units; April, 100 units; May, 97 units; June, 115 units. In March of the current year, sales for the months April through June were reforecasted as follows: April, 100 units; May, 92 units; June, 105 units. In April of the current year, sales for the months May and June were reforecasted as follows: May, 82 units; June, 100 units. In May of the current year, sales for June were reforecasted as 100 units.
Actual sales for the six-month period, January through June, were as follows: January, 92 units; February, 88 units; March, 99 units; April, 108 units; May, 110 units; June, 123 units.
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1. Prepare a schedule of forecasted sales, on a rolling basis, for the months January through June, inclusive. (Hint: There will be only one forecasted number for January-this is the forecast done in December. For February, there will be two forecasts: one done in December and a second done in January. For June, there will be six forecasts, one done in each of the preceding six months.)
2. For each of the months March through June, determine the 3-month forecast error rate, defined as 1 minus the absolute percentage error. For example, the forecast error rate for March’s sales is found by dividing the absolute value of the forecast error for this month by the actual sales volume for the month. The forecast error for any month (e.g., March) is defined as the difference between the actual sales volume for the month and the sales volume for that month forecasted 3 months earlier (e.g., December). Also, indicate for each month whether the actual sales volume was above or below the forecasted volume generated three months earlier.