At December 31, 2020, Bridgeport Corporation had a projected benefit obligation of $561,600, plan assets of $331,900, and prior service cost of $120,300 in accumulated other comprehensive income. Determine the pension asset/liability at December 31, 2020. (Enter liability using either a negative sign preceding the number e.g. -45 or parentheses e.g. (45).) Pension asset/liability at December 31, 2020