Power Brite Painting Company specializes in refurbishing exterior painted surfaces that have been hard hit by humidity and insect debris. It uses a special technique, called pressure cleaning, before priming and painting the surface. The refurbishing process involves the following steps:

1. Unskilled laborers trim all trees and bushes within two feet of the structure.

2. Skilled laborers clean the building with a high-pressure cleaning machine, using about 6 gallons of chlorine per job.

3. Unskilled laborers apply a coat of primer.

4. Skilled laborers apply oil-based exterior paint to the entire surface.

On average, skilled laborers work 12 hours per job, and unskilled laborers work 8 hours. The refurbishing process generated the following operating results during the year on 628 jobs:

Skilled labor............$20 per hour

Unskilled labor........... $8 per hour

Gallons of chlorine used.....3,768 gallons at $5.50 per gallon

Paint primer............7,536 gallons at $15.50 per gallon

Paint..............6,280 gallons at $16 per gallon

Depreciation of paint-spraying ...$600 per month depreciation

Equipment

Lease of two vans........$800 per month total

Rent on storage building......$450 per month

Data on untilities for the year are as follows:

Required
1. Classify the costs as variable, fixed, or missed.
2. Using the high-low method, separate mixed costs into their variable and fixed components. Use total hours worked as the basis.
3. Compute the average cost per job for the year.
4. Project the average cost per job for next year if variable costs per job increase 20 percent.
5. Why can actual utilities costs vary from the amount computed using the utilities costformula?

Transcribed Image Text:

Number of JobsCost Hours Worked 42 37 January February March April May June July s 3,950 3,550 4,090 4,410 4,720 5,240 5,820 5,890 5,370 4,340 4,210 3,830 555.420 740 880 980 1,080 1,240 1,420 1,460 1,260 960 900 800 49 54 62 71 September October November December 63 48 45 40 628 프560