Please explain WHY and show calculations. Thank you.

Using the following data, develop an allowance percentage for a job element that requires the worker to lift a weight of 40 pounds while (1) standing in a slightly awkward position, (2) in light that is well below recommended according to standards, and (3) with intermittent loud noises occurring. The monotony for this element is high. Include a personal allowance of 5 percent and a basic fatigue allowance of 4 percent of job time. (Leave no cells blank - be certain to enter "0" wherever required.) A. Constant allowances: 1. Personal allowance 2. Basic fatigue allowances B. Variable allowances: 1. Standing allowance 2. Abnormal position allowance: a. Slightly awkward b. Awkward (bending) c. Very awkward (lying, stretching) 3. Use of force or muscular energy (lifting, pulling, or pushing): Weight lifted (in pounds): 5 10 15 20 25 30 35 40 45 50 60 70 Percent 5 4 2 420 7 0 4579 WNIO 1 2 3 11 13 17 22 4. Bad light: a. Slightly below recommended b. Well below c. Very inadequate 5. Atmospheric conditions (heat and humidity)-variable 6.Close attention: a. Fairly fine work b. Fine or exacting c. Very fine or very exacting 7. Noise level: a. Continuous b. Intermittent-loud c. Intermittent-very loud d. High-pitched-loud 8. Mental strain: a. Fairly complex process b. Complex or wide span of attention c. Very complex 9. Monotony: a. Low b. Medium c. High 10. Tediousness: a. Rather tedious b. Tedious c. Very tedious Percent UN O 2 5 0-10 2 5 UUN O 2 5 5 041 8 0 1 4 2 5 Factor Personal Fatigue Standing Lifting Light Noise Level Monotony Total % 5 4 9