Required information $[$The following information applies to the questions displayed below.$]$ On August $1,2022,$ Colombo Company's treasurer signed a note promising to pay $\backslash (\backslash$$ $123,000\backslash )$ on December $31,2022.$ The proceeds of the note were $\backslash (\backslash$$ $114,300\backslash ).$ Required: a$.$ Calculate the discount rate used by the lender. Note: Enter your answer as a percentage rounded to $1$ decimal place $($i$.$e$.,32\mathrm{.}1).$Required information $[$The following information applies to the questions displayed below.$]$ On August $1,2022,$ Colombo Company's treasurer signed a note promising to pay $\backslash (\backslash$$ $123,000\backslash )$ on December $31,2022.$ The proceeds of the note were $\backslash (\backslash$$ $114,300\backslash ).$ b$.$ Calculate the effective interest rate $($APR$)$ on the loan. Note: Enter your answer as a percentage rounded to $1$ decimal place $($i$.$e$.,32\mathrm{.}1).$