The Kollar Company has a defined benefit pension plan. Pension information concerning the fiscal years $2024$ and $2025$ are

presented below $($ $ in millions$)$:

Information Provided by Pension Plan Actuary:

a$.$ Projected benefit obligation as of December $31,2023=$$$3,500.$

b$.$ Prior service cost from plan amendment on January $2,2024=$$$700($straight$-$line amortization for $10-$year average remaining service

period$).$

c$.$ Service cost for $2024=$$$660.$

d$.$ Service cost for $2025=$$$710.$

e$.$ Discount rate used by actuary on projected benefit obligation for $2024$ and $2025=10\%.$

f$.$ Payments to retirees in $2024=$$$520.$

g$.$ Payments to retirees in $2025=$$$590.$

h$.$ No changes in actuarial assumptions or estimates.

i$.$ Net gain$-$AOCl on January $1,2024=$$$380.$

j$.$ Net gains and losses are amortized for $10$ years in $2024$ and $2025.$

Information Provided by Pension Fund Trustee:

a$.$ Plan asset balance at fair value on January $1,2024=$$$2,500.$

b$.2024$ contributions $=$$$680.$

c$.2025$ contributions $=$$$730.$

d$.$ Expected long$-$term rate of return on plan assets $=12\%.$

e$.2024$ actual return on plan assets $=$$$230.$

f$.2025$ actual return on plan assets $=$$$280.$

Required:

Calculate pension expense for $2024$ and $2025.$

Prepare the journal entries for $2024$ and $2025$ to record pension expense.

Prepare the journal entries for $2024$ and $2025$ to record any gains and losses and new prior service cost.

Prepare the journal entries for $2024$ and $2025$ to record $($a$)$ the cash contribution to plan assets and $($b$)$ the benefit payments to

retirees.