It's the same as why you wouldn't measure your weight in ounces, but neither would you weigh something very light in pounds - you want a convenient number which is easy to interpret. PC is short for parsec and it's a unit of measurement equal to 3,000,000,000,000,000,000 cm!
Take your annual covered earnings (the earnings on which you pay Social Security payroll taxes), multiply it by that year's index factor and you will obtain your indexed wage for each year you have worked. Next, add up all these indexed wages and divide them by 35 to determine your average wage.
If you do include your salary history, be honest. It's easy for potential employers to verify your salary with previous employers. Do this as an attachment to the resume. A salary history can be listed on a separate page and enclosed with your resume and cover letter.mployers request salary histories and/or requirements to help them determine if there is a fit monetarily. If you're fairly certain that your salary history matches well with an organization's expectations and compensation structure, you can include this in your cover letter.