Lavigne Company started a share appreciation plan on January1, 2015, when it granted 111,000 rights to its executives. The pre-established price is $17 per share, which is the market value of the shares at January1, 2015. The vesting period is three years. The plan expires on January1, 2018. Lavigne's closing market price for the years ended December 31, 2015, through 2018 are as follows All SARs are exercised on January 1,2018, when the market price is S 18. Date December 31, 2015 December 31, 2016 December 31,2017 Closing Market Price $23.00 S30.00 $21.00 Requirements What is the compensation expense in 2015, 2016, and 2017? Prepare the journal entries to record the plan a. b