Mad Dog Fence company expects to sell 300 fences plyt for $1060 each Monthly sales are 20% cash and 604 . credit . Operating expenses are variable costs of $450 plfence and annual fixed costs of $80 090 . Mad Dogs total assets are worth $200 000 . This include hammers , saws post hole diggers and a truck and trailer for hauling equipment to work sites , James , the owner expects a 16 % rate of return of return on assets . What is Mad Dog's Sales Margin