I need help with part D.

Metlock Industries produces a cleaning product that works for the peskiest stains. It's pricey but less expensive than hiring a professional cleaning service. The managers at Metlock are conducting variance analysis at the end of January, the first month of the new fiscal year. Budgeted fixed-MOH costs for the year were $2,361,600. The company's standards for one gallon of cleaning solution are as follows, along with actual information for the month. Actual results for January: 24,000 gallons were actually produced. Cost of DM purchased was $222,750 for 13,500 gallons of solution. DM used in production was 11,760 gallons. Cost of DL was $137,640 for 7,440 DL hours worked. Variable-MOH cost was $128,520 for 50,400 machine hours used. Fixed-MOH cost was $209,160. Your answer is partially correct. Determine the DM,DL, and variable- MOH price and efficiency variances for the month. Your answer is partially correct. Determine the fixed-MOH price and volume variances for the month. If Metlock Industries sells this cleaning product for $42 per gallon, what is its expected gross margin percentage? (Round answer to 1 dedinal place, eg. 15.2\%)