Paul and Sandy Moede signed an $$8,650$ note at Citizen's Bank. Citizen's charges a $4\mathrm{.}5\%$ discount rate. Assume the loan is for $320$ days.

a$.$ Find the proceeds.

Note: Use $360$ days a year. Round your intermediate calculations and final answer to the nearest cent.

$\backslash$table$[[$Proceeds$,$$$,8\mathrm{.}304\mathrm{.}00]]$

b$.$ Find the effective rate charged by the bank.

Note: Use $360$ days a year. Do not round intermediate calculations. Round your answer to the nearest tenth percent.