Question $5$Retaken$20/20$ points A taxpayer has some spare cash sitting in a checking account $(0\%$ return$)$ and would like to put the maximum amount in a IRA this year $(2023$: $$6,500$ for those under $50$ years of age, $$7,500$ for those over $50).$ The taxpayer is trying to decide between a traditional deductible IRA or a Roth IRA $($Roth $=$ invest after$-$tax income, but tax free on withdrawal$).$ Assume the tax savings from the deductible IRA would be invested at the same rate of return for the same period and face the same tax rate at withdrawal as the deductible IRA; which is at age $70,40$ years from today. Assume an annual before$-$tax rate of return of $10\%,$ and a current tax rate of $24\%.$ Note that in both IRA investment choices, the IRA contribution limit is met but there is an additional investment of the tax savings from the traditional IRA $($as above$).$ If the expected tax rate at withdrawal $($age $70)$ is $35\%,$ what is the difference in the after$-$tax annualized rate of return between the traditional deductible IRA $($including the taxes saved investment$)$ and the Roth IRA $($i$.$e$.,$ deductible AnAT RoR $-$ Roth AnAT RoR$)$; thus, a positive value indicates the deductible IRA has a higher rate of return than the Roth IRA.$$ Please enter in percent to the nearest hundredth of a percent and without the $"\%"$ sign, use $4/5$ rounding $(0\mathrm{.}00757=0\mathrm{.}757\%,$ enter: $0\mathrm{.}76).$ Answer: $-1\mathrm{.}27$ Can you explain how to get this answer with excel?