LTD$.$ has a profit margin of $14\%$ and a dividend payout of $45\%.$ last year's sales were $$5000$ million and total assets were $$3500$ illion. None of the liabilities vary directly with sales, but assets and costs do$.$ if the sales growth rate for Ltd is $15\%$ how much external financing is needed? a$)82\mathrm{.}2$ million b$)98\mathrm{.}5$ million c$)70\mathrm{.}9$ million d$)77\mathrm{.}2$ million e$)91\mathrm{.}4$ million