In exchange for a $$400$ million fixed commitment line of credit, your firm has agreed to do the following:

Pay $1\mathrm{.}7$ percent per quarter on any funds actually borrowed.

Maintain a $2$ percent compensating balance on any funds actually borrowed.

Pay an up$-$front commitment fee of $\mathrm{.}21$ percent of the amount of the line.

Based on this information, answer the following:

Ignoring the commitment fee, what is the effective annual interest rate on this line of credit?

Note: Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.$

Suppose your firm immediately uses $$219$ million of the line and pays it off in one year. What is the effective annual interest rate on this $$219$ million loan?