Bell Greenhouses has estimated its monthly demand for potting soil to be the following: N 400 9X where N is the monthly demand for bags of potting soll and X is the time period in months (March 2016 - 0). Assume this trend factor is expected to remain stable in the foresteable future. The following table contains the monthly seasonal adjustment factors which have been estimated using actual sales data from the past five years: Complete the following table by forecasting Bell Greenhouses' demand for potting soil in March, June, August, and December 2017 Month Adjustment Factor (%) Forecast March +2 June 415 August 10 December -12 The following table shows the forecasted and actual potting soil sales by Bell Greenhouses for April in five different years, 80'F Haze The following table shows the forecasted and actual potting soil sales by Bell Greenhouses for April in five different years. Year Actual Forecast 517 2017 538 2016 409 442 2015 301 310 2014 193 207 2013 85 87 Vhat seasonal adjustment factor would you recommend be used to forecast in April 2018? 1.896 2.6% 5.0%