If Teal reworks its equipment layout and processes to increase the top end of its relevant range of activity to $2,500,000$ notebooks without incurring more fixed costs, what happens to the fixed cost per unit if it is able to make and sell that larger quantity of units?

Direct material: $$0\mathrm{.}10$

Direct labor: $$0\mathrm{.}25$

Variable overhead: $$0\mathrm{.}10$

Fixed overhead: $$0\mathrm{.}20$

Fixed costs: does it increase or decrease? new $ per unit?

Total cost per unit: new $ per unit?

Gross margin: new total $$?$