Braham Ltd manufactures a computer stand. It has fixed costs of $500,000 and each stand sells for $120, with a variable cost of $70 per unit. The factory has a maximum capacity of 20,000 units and it anticipates selling 15,000 units each period. Construct the break-even chart for the business, showing the break-even point, and the margin of safety. Calculate the total revenue cost, total cost, and variable cost.