Kwan Fu withdrew the entire $$8,000$ balance from a Roth IRA this year. The total contributions to the account were $$6,070,$ and Kwan has a $12$ percent marginal tax rate.

Required:

Determine the tax cost of the withdrawal if Kwan is age $63$ and opened the Roth IRA three years ago.

Determine the tax cost of the withdrawal if Kwan is age $63$ and opened the Roth IRA seven years ago.

Determine the tax cost of the withdrawal if Kwan is age $48$ and opened the Roth IRA seven years ago.