with calculation

Dyson manufactures vacuum cleaners. The manufacturing plant has the capacity to produce up to 12,000 vacuums per quarter with its existing equipment and facilities. Currently, Dyson produces and sells 10,000 vacuums per quarter. The price of each vacuum is $450. Per-unit manufacturing costs are listed below: a. Dyson has just received a special one-time-only order for 800 vacuums at $300 each. Dyson has sufficient capacity to accept the special order without affecting its regular business or its fixed costs. What would be the impact of accepting the special order? b. Suppose Dyson was already operating at plant capacity (i.e. already producing 6,000 units). What would be the impact of accepting the special order in this scenario