Monthly Profit of an Auto Repair Shop Month Jan-14 Feb-14 Mar-14 Apr-14 May-14 Jun-14 Jul-14 Aug-14 Sep-14 Profit ($) 17,426 17,576 16,355 18,541 20,063 17,340 19,123 18,611 20,410 Step 3 of 4 : Determine the exponential smoothing forecast for the next time period using a smoothing constant of 0.40. If necessary, round your answer to one decimal place