Hello, my answer for this question is 59.75, I would like to know if it is right.

Question 9 Not yet answered Marked out of 1.00 P Flag question Based on the last 4 months of sales of baby diapers, a retailer wants to test the accuracy of a 2-months moving average forecasting method: Sale month 1: 220, Forecast month 1: 200 Sale month 2: 379, Forecast month 2: 350 Sale month 3: 320, Forecast month 3: based on 2-months moving average Sale month 4: 180, Forecast month 4: based on 2-months moving average Calculate the mean absolute deviation (MAD) of the 2-months moving average method based on month 1 until month 4. Please write the MAD in the box below with 2 decimals