Taxable income Tax rate

$$0-$ $$50,00015\%$

$$50,001-$ $$75,00025\%$

$$75,001-$ $$100,00034\%$

$$100,001-$ $$335,00039\%$

$$335,001-$ $$10,000,00034\%$

$$10,000,001-$ $$15,000,00035\%$

$$15,000,001-$ $$18,333,33338\%$

$$18,333,334$ and above $\_35\%$

If a firm has taxable income of $$17\mathrm{.}5$ million and a total tax bill of $$6\mathrm{.}1$ million, its marginal tax rate is $\_\_\_\_\_\_\_.$