The demand for refurbished cell phones is experiencing a decline. The company wants to monitor cell phone demand closely. The trend-adjusted exponential smoothing method is used with α = 0.1 and β = 0.2. At the end of December, the updated estimate for the average number of cell phones sold in January was 340 and the updated trend for January was 52 per month. The following table shows the actual sales history for January, February, and March. Generate forecasts for February, March, and April.

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MONTH January February March UNITS SOLD 168 198 230