Retirement Planning with gift

A couple thinking about retirement decide to put aside $$28,000$ each year in a savings plan that earns $12\mathrm{.}00\%$ interest. In $8$ years they will receive a gift of $$80,500$ that also can be invested.

a$.$

How much money will they have accumulated $34$ years from now? $($Do not round intermediate calculations. Round your answer to $2$ decimal places.$)$

Accumulated savings $

b$.$

If their goal is to retire with $$12,411,313$ of savings, how much extra do they need to save every year? $($Do not round intermediate calculations. Round your answer to $2$ decimal places.$)$

Additional savings $

per year