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The steps to calculate what percent one number is of another are to divide the first number by the second number, then multiply by 100 to convert the decimal result to a percentage value. For example, to calculate what 25 percent of 80 is, first convert 25 percent to a decimal value by dividing by 100.


Knowing how to calculate percentages will help you not only score well on a math test but in the real world as well. They are used for calculating tips in restaurants, finding out the nutritional content of your food, or even determining statistics of your favorite sports team.


Calculate Percentages: A Step-by-Step Guide for Students. Calculating percentages isn't just a skill that you use in math class. Adults have to calculate percentages every day, in order to figure tips, taxes, commissions and sale prices. Keep on reading for a step-by-step explanation of how to calculate percentages.


How to calculate percentages; Lesson. Calculating with Percent e.g. 35% of 180 is ? Calculating with Percent e.g. 16 out of 50 is what % & 12 is 40% of ? Worksheet. Printable percentage worksheets; Calculating Percentages in Two Steps e.g. Finding 10% of a value and then multiplying to find 40%


How to Do Percentages If you are to calculate marks out of 100 it is usually not difficult so as to find the percentage. Nevertheless, if the marks you have obtained are not exactly out of 100 and you are calculating percentage, it may prove to be quite confusing and problematic for some students as well as for some elderly people.


Percentage calculator This online calculator solves the four basic types of percent problems and percentage increase/decrease problem. The calculator will generate a step-by-step explanation for each type of percentage problem.


To calculate mass percent, start by identifying the mass of the chemical-in-question. Next, figure out the total mass of the compound by adding together the masses of all of the chemicals used to make that compound. Then, divide the mass of the chemical by the total mass of compound. Multiply the answer you get by 100 to calculate the percentage!


Percentage Calculator is a 2-way online tool to calculate percentages. Calculate percentages and check how simple it is. We will show You step by step how we do it.


How to Calculate Percentages by hand: Steps . What is 19% of 20? Step 1: Remove the percent sign and add a couple of zeros after the decimal point. 19% becomes 19.00 Step 2: Convert the percent to a decimal by moving the decimal point two places to the left: 19.00 > .1900 Step 3: Multiply Step 2 by the amount (in this case, 20):.19 * 20 = 3.8. 19 is what percentage of 20?


You can practice calculating percentages by first finding 1% (and/ or finding 10%) and then multiplying to get your final answer using this Calculating Percentages in Two Steps Worksheet. There are also more percentage worksheets here too.