{{convert/Dual/prnd{{{?}}}|{{{1}}}|{{{2}}}|{{{3}}}|b=({{{4}}}*2-({{{4}}}))/{{{b}}}|j={{{j}}}|p=1|s=0|n={{{n}}}|l={{{n}}}s|h={{{n}}}|u={{{u}}}|k={{{5}}}}}

The Template:Convert/Dual/Values invokes whichever {Convert/Dual/s?p?rnd|...} to process conversion (and rounding) with factor {b}, having range word {2} received as {5} and passed as {k} when rounding, formatting the results by {Convert/{2}|...}.