MJ Ltd. Manufactures and sells four product lines North, South, East and West. The sales mix in terms of revenue comprises of the following: Product Line North South East West Percentage 33.33% 41.67% 16.67% 8.33% 100% Total budgeted monthly sales are set to be 600,000 units per month. Variable costs information for the product lines is given below: Product Line North South East West 60% of selling price 68% of selling price 80% of selling price 40% of selling price Fixed cost per month amounts to $159,000. Required: (i) Calculate the break-even for the products on an overall basis. State any necessary assumption(s) for your computations