Local Co$.$ has sales of $ $10\mathrm{.}9$ million and cost of sales of $ $6\mathrm{.}2$ million. Its$$ selling, general and administrative expenses are$$$ $510$ comma $000$ and its research and development is $ $1\mathrm{.}4$ million. It has annual depreciation charges of $ $1\mathrm{.}2$ million and a tax rate of $35\%.$Local$\text{'}$s gross margin is $43\mathrm{.}12\%,$ its operating margin is $14\mathrm{.}59\%,$ and its net profit margin is $9\mathrm{.}48\%.$ If Local Co$.$ had interest expense of $ $900$ comma $000,$ how would that affect each of its$$ margins?