On December 31, 2021, what amount should be reported as a restriction of retained earnings as a result of the treasury share transactions?

1. On February 1, 2021, Atijera Company had 20,000 treasury shares of P100 par value that had been acquired in 2020 at P120 per share. In December 2021, the entity reissued 15,000 of these treasury shares at P150 per share. The cost method is used to record treasury transactions