Relationship between fixed cost average cost and marginal cost with graph?

Your fixed cost is going to be lower than you average cost and marginal cost as it is what you have to pay no matter what. If your business has a fixed cost of $800 (renting the building, insurance, and other things that don't change month to month) per month you and utilities, pay roll, and inventory to that (all things that change month to month) and average the amount out over, lets just say, a year this will allow you to subtract the average cost from the fixed cost to get the average marginal cost. You can deduce that the marginal cost month by month is the total minus the fixed. Draw your own graph. Another way of putting it.. Average Cost curve has a U shape and the Marginal Cost curve intersects the Average Cost curve at its minimum. Average Cost has U shape because when a firm starts producing initially, it experiences increasing returns

• as the Fixed Costs are being spread over more levels of output

and the combination of input factors reach optimum. This is where AC curve is falling. Then once the Short-run capacity constraints of the Fixed Inputs is reached, the firm begins to experience diminishing marginal returns to its variable inputs. In other Words, the principle of diminishing returns is becoming more dominant. This is where AC curve is increasing. When MC is below AC, AC is falling because producing an extra output will pull down average costs. When MC is above AC, AC is rising, because producing an extra output will increase AC. Therefore MC always intercepts a U shaped AC curve at its minimum point.