To find the percent of a number, you need to know what percentage you are looking for. Say you want to know how to leave a 20% tip on a meal that costs $5.00. Then take 5 and multiply
http://answers.ask.com/Science/Mathematics/how_to_...

1. Write down the number of missed or incorrect answers. 2. Subtract the number of missed answers from the total number of answers to get the number of correct answers. If a test
http://www.ehow.com/how_8432432_percentnumberans...

To find the percentage, subtract the part to the whole . Take your answer and divide it into the whole. Then multiply by 100.
http://wiki.answers.com/Q/HOW_TO_find_a_percent_of...

1. Subtract the last recorded number from the first number. For example, if you need to find the percent difference between the $10 you made yesterday and the $15 you made today,
http://www.ehow.com/how_6313722_calculatedifferen...
