A commodily analyst has made available the following information about the coball production in the Dernocratic Republic, ofCongo $($DRC$)$ in $2021$ The country produced $120000$ tonnes of cobalt with the following resources:

$\backslash$table$[[$Labour:$,1200000$ hours @ R$250\mathrm{.}00$ per hour$],[$Energy:$,$R$8000000$ per month$],[$Capital costs:,R$160000000$ for the year$],[$Expenditure on suppliers and Supplies:,R$120000000$ for the year$]]$

Required:

$2\mathrm{.}1.$ Calculate the labour productivity per labour$-$hour in terms of tonnes of cobalt produced in the DRC during the $2021$ financial year $($round off answer to one decimal place$).$

$2\mathrm{.}2.$ In relations to cobalt production in the DRC during the $2021$ financial year, determine the multifactor productivity. Assume an average selling price of R$60000$ per tonne $($round off the answer to two decimal places$).$

$2\mathrm{.}3.$ Assuming that the capital costs and the energy bill in relations to cobalt production were reduced by $50\%$ and $30\%$ respectively in $2022$ without cutting production or changing any other input, determine the percent change in multifactor productivity? $($Assume an average selling price of $R55000$ per tonne of cobalt in $2022).$