Jill Clark invested $ $24,850$ in the bonds of Industrial Aromatics, Inc. She held them for $13$ months, at the end of which she sold them for $ $26,896.$ During the period of ownership she received $ $1,920$ interest. Calculate the pretax and after$-$tax HPR on Jill's investment. Assume that she is in the $35\%$ ordinary tax bracket $($federal and state combined$)$ and pays a $15\%$ capital gains rate on dividends and on capital gains for holding periods longer than $12$ months.