Strum Enterprises is a boutique guitar manufacturer. The company produces both acoustic and electric guitars for rising and established professional musicians. Claire Strum, the companys sales manager, prepared the following sales forecast for 2015. The forecasted sales prices include a 5 percent increase in the acoustic guitar price and a 10 percent increase in the electric guitar price, to cover anticipated increases in raw materials prices.

Acoustic guitar sales: Sales Price $1,260 1st Quarter 400 2nd Quarter 500 3rd Quarter 300 4th Quarter 600

Electric guitar sales : Sales Price $2,530 1st Quarter 200 2nd Quarter 80 3rd Quarter 100 4th Quarter 120