Oil$4$You creates essential oils from a variety of select organic botanicals. They can sell individual oil tubes or create oil assortment sets. What is the advantage or disadvantage for making and selling oil assortment set #$22($rounded to TWO DECIMAL PLACES, report disadvantage as negative number$)?$

Oil Assortment $22$:

Selling price for a tube of essential oil: $$3\mathrm{.}10$

Packing and labor cost to create assortment of four tubes: $$2\mathrm{.}35$

Selling price for oil assortment #$22$: $$12\mathrm{.}37$