Case Defence sells smartphone cases and uses the perpetual inventory system. The following is information on the purchases and sales of "Defender Box" cases. On October $1,$ Case Defence had $27$ units with a unit cost of $$21.$

$\backslash$table$[[$Purchases$,$Sales$],[$Date$,$Units,Unit cost,Units,Unit Price,$],[$Oct$.,3,17,22,,],[$Oct$.,6,,,22,$$$57$

Question $4)$ Gross profit percentage $1.$FIFO $\%$

$2.$Moving weighted average $\%$