Spencer Chemical Corporation produces an oil-based chemical product which it sells to paint manufacturers. In 2019, the company incurred $344,000 of costs to produce 40,000 gallons of the chemical. The selling price of the chemical is $12.00 per gallon. The costs per unit to manufacture a gallon of the chemical are presented below: Direct materials $6.00 Direct labor 1.20 Variable manufacturing overhead .80 Fixed manufacturing overhead .60 Total manufacturing costs $8.60 The company is considering manufacturing the paint itself. If the company processes the chemical further and manufactures the paint itself, the following additional costs per gallon will be incurred: Direct materials $1.70, Direct labor $.60, Variable manufacturing overhead $.50. No increase in fixed manufacturing overhead is expected. The company can sell the paint at $15.50 per gallon. Determine the incremental per gallon increase in net income and the total increase in net income if the company manufactures the paint. (