1. Define what you want your percentage to represent. For example, you may want to find out how many people responded their favorite color is blue in a survey. 2. Count the number
http://www.ehow.com/how_8148040_figuresurveyperc...

if u get 3. 30 questions rite and you get 50 wrong u take the top numer times the bottem number to get your percentage. thirty is the top number and 50 is the bottem number.
http://wiki.answers.com/Q/What_is_the_formula_for_...

Slugging percentages (abbreviated SLG) are figured by dividing the number of
http://www.chacha.com/question/howissluggingper...

There is something called a Victimization Survey where they phone people and ask if they've been a victim of a certain crime in the past 6 months, year, etc. These numbers are higher
http://www.quora.com/CrimeStatistics/Forcrimest...
