The weekly output of a fabrication process is shown below together with data for labour and material inputs. Overhead is charged weekly at the rate of $$1,500.$ Assume a $40-$hour week and an hourly wage of $$16.$ Material cost is $$10$ per kilogram. What is multifactor productivity?

Week

Output

# Workers

Material $($Kg$)$

$1$

$49,000$

$20$

$2,700$

A$)1\mathrm{.}793$

B$)1\mathrm{.}832$

C$)1\mathrm{.}457$

D$)1\mathrm{.}622$

E$)1\mathrm{.}575$