A fabrication process produced $15000$ units last week. Assume there were $20$ workers, each worked $40-$hours last week on an hourly wage of $$18.$

$(1)$ What is the labor productivity per worker$-$week $($per worker per week$)?$

$($Round your answer to $2$ decimal places.$)$

Further, assume the company uses $34$ pounds of materials at a cost of $$440$ per pound and total weekly overhead is $$1800.$

$(2)$ What is the multi$-$factor productivity $($labor$+$overhead$+$materials$)?$

$($Round your answer to $2$ decimal places.$)$