On January 1, 20X2, Gretta Corp. which follows IFRS and has a December 31 year-end, granted 1,000 stock options to each of its 300 employees. The options have a three-year vesting period. At the grant date, the fair value of each option was $2.80. Additional information follows:

* At the end of 20X2, 20 employees have left and Gretta estimates that an additional 75 will leave in the next two years.

* During 20X3, 30 employees leave and Gretta estimates that another 50 will leave in the next year.

* During 20X4, 35 employees leave.

What amount of compensation expense will Gretta recognize in 20X3, related to these options?