At December 31,2020 , Indigo Corporation had a projected benefit obligation of $596,700, plan assets of $315.300, and prior service cost of $129.800 in accumulated other comprehensive income. Determine the pension asset/liabilky at December 31, 2020. (Enter liability using either a negative sign preceding the number eg. 45 or parentheseses. (45).) Pension asset/lability at December 31,2020$