Your company is hoping to grow sales by $15\%$ this year, but it is currently strapped for outside funding opportunities due to high leverage and poor market conditions. Use the internal growth rate approach to calculate what percentage growth in sales can be supported using internal funds only. Provide your answer in percent form, without the percent sign $($X$.$YZ$,$ not X$.$YZ$\%$ or $0\mathrm{.}0$XYZ$).$

Net income forecast: $$1,200,000$

Book Equity: $$10,000,000$

$\%$ of Assets made up by Equity: $48\%$

$\%$ of net income paid to shareholders: $4\%$