Taylor Electronics Inc $($TEI$),$ has been approached by a new customer who wants to place a one$-$line order for a component similar to one that TEI makes for another customer. Existing sales will not be affected by acceptance of this order. TEI has a policy of setting its targeted selling price at $60$ percent over full manufacturing cost. The manufacturing costs and the targeted selling price for the component currently being made are as follows:

Direct Material $---$ $$2\mathrm{.}30$

Direct Labour $-$$$3\mathrm{.}60$

Variable manufacturing overhead $(75\%$ af direct labor cost$)-$ $$2\mathrm{.}70$

Fixed manufacturing overhead $(150\%$ of direct labor cost$)-$ $$5\mathrm{.}40$

Total Manufacturing cost $-$ $$14\mathrm{.}00$

Markup$-$$$8\mathrm{.}40$

Target Selling price $-$ $$22\mathrm{.}40$

TEI has excess capacity to produce the quantity of the component desired by the new customer. The direct materials used in the component for the new customer would cost the manufacturer $$\mathrm{.}25$ less than those in the component currently being made. The variable selling expenses $($packaging and shipping$)$ would be the same as for the component currently being made, or S$\mathrm{.}90$ per unit. What is the minimum unit price at which TEl would be willing to accept the special order?