Suppose that a price-searcher firm had consumers who were all identical to each other. The individual consumer's demand function is given by: qD= 20-5P. The firm decides to try a second-degree price discrimination scheme. The first 8 units will have a price of $2.40. After that, any units a consumer purchases will be only $1.00. The firm has a constant marginal cost of $0.80 per unit. Calculate the firm's producer surplus. (Do not include a "$" sign in your response. Round to the nearest two decimal places if necessary.)