QUESTION $4$

$[15]$

$4\mathrm{.}1$ The table below provides various profit margins based different mark$-$up on cost on a certain product that was bought at R$2,000.$ You are required to fill in the missing information

$(15)$

$\backslash$table$[[$Cost $($R$),\backslash$table$[[$Mark$-$up on$],[$cost $\%]],$Sales Price $($R$),$Profit $($R$),\backslash$table$[[$Profit Margin$],[(\%)]]],[R2,000,10\%,$a$)$ dotsdotsdots,b$)$ dotsdotsdots,c$)$ dotsdotsdots