Paola is looking for a fully amortizing $30$ year Fixed Rate Mortgage with monthly payments for $$4,500,000.$ Mortgage A has a $4\mathrm{.}38\%$ interest rate and requires Paola to pay $1\mathrm{.}5$ points upfront. Mortgage B has a $6\%$ interest rate and requires Paola to pay zero fees upfront. Assuming Paola makes payments for six months before she sells the house and pays the bank the balance, what is Paola$$s annualized IRR from mortgage A$?$ Write your answer as a percent rounded to two decimal points without the $\%$ sign $($e$.$g$.$ if you get $5\mathrm{.}6499\%,$ write $5\mathrm{.}65).$