Show and explain all the steps if that is possible

Nelero Co'sElectrical Division (the selling division) produces a high-quality transformer Sales and cost data for the transformer appear below: Selling price per unit on the outside market $75 Variable costs per unit S35 Fixed costs per unit (based on capacity) S20 Capacity in units 100,000 Nelero Co. also has a Motor Division (the buying division) that would like to begin purchasing this transformer from the Electrical Division. The Motor Division is currently purchasing 20,000 medium-quality transformers each year from another company at transformer. Nelero company evaluates its division managers on the basis of divisional profits. managers can freely decide whether to sell or buy internally or outside suppliers