Flamingo, Inc. began the year with equity totaling R$153,000,$ and by year$-$end, its total assets amounted to R$215,000.$ The company did not issue any new equity during the year. It recorded a net income of R$29,000,$ with dividends amounting to R$6,400.$ What is the sustainable growth rate of the company? Additionally, what is the sustainable rate if the formula ROE x b is applied using the beginning$-$of$-$the$-$period equity? Furthermore, what is the sustainable growth rate when using end$-$of$-$the$-$period equity in this formula? Lastly, is this figure deemed too high or too low, and why?