Krypton Engineering expects to have net profit next year of $$45\mathrm{.}31$ million and free cash flow of $$22\mathrm{.}11$ million. Krypton's marginal corporate tax rate is $40\%.$

a$.$ If Krypton increases leverage so that its interest expense rises by $$13\mathrm{.}9$ million, how will its net profit change?

b$.$ For the same increase in interest expense, how will free cash flow change?

a$.$ If Krypton increases leverage so that its interest expense rises by $$13\mathrm{.}9$ million, how will its net profit change?

Net profit will fall to $ million. $($Round to two decimal places.$)$