Sales for the past 8 months at Dalworth Company are given here.

• Use a 3-month weighted moving average to forecast the sales for June, July, and August. Use weights of (10), (5), and (1), giving more weight to more recent data.
• Use exponential smoothing with  forecast the sales for June, July, and August. Assume that the forecast for May was $39 million.
• Calculate the Mean Absolute Percent Error (MAPE) for each of the two forecasting methods: 3-month weighted moving average and exponential smoothing, for each month (June, July, and August). Based on these calculations, identify which method provided a more accurate forecast for each month. Be sure to show all error measurements.