7. mia is thinking about moving her traditional ira to a roth ira. making this change will lead to a loss of 15% of her retirement savings. she has $600,000 saved and needs to withdraw $3,500 per month after taxes. she expects her tax rate to be an average of 20% in retirement. this money is and will remain invested at a rate of 6%. how long with her money last under each type of ira.
