# Elementary arithmetic and percentage

Many percentage problems are really "two-part-ers" like this: they involve some kind of increase or decrease relative to some original value.

### How to use percentage

But let's bring another 0 down. What percent? You could say, well, look, if in the denominator to go from 4 to , I have to multiply by Percent literally means "per cent. When you are doing actual math, you need to use actual numbers. Calculating Percentage To calculate a percentage, you turn the numbers into a ratio as a fraction of Many percentage problems are really "two-part-ers" like this: they involve some kind of increase or decrease relative to some original value. If you subtract, you get 8. Well, let me just do the division and convert to a decimal, which is very easy to convert to a percentage.

To calculate a percentage of another percentage, you convert both percentages to decimals and multiply them, at which point you can translate the decimal result back to a fraction and then a percentage. Then, since "sixteen percent OF fourteen hundred" tells you to multiply the 0.

In any given problem, you plug your known values into this equation, and then you solve for whatever is left. The format displayed above, " this number is some percent of that number ", always holds true for percents.

The tax was: 7. When you are doing actual math, you need to use actual numbers.

### Define percentage with example

What is the average hourly wage of these 8 employees? Warning: Always figure the percentage of change relative to the original value. The Importance of Specificity Whenever we talk about a percentage, it is important to specify what the percentage is relative to. Well, let me just do the division and convert to a decimal, which is very easy to convert to a percentage. Percent literally means "per cent. So let's try to actually do this division right over here. The format displayed above, " this number is some percent of that number ", always holds true for percents. The tax was: 7. So I'm also going to multiply by But that still doesn't answer our question. But this is saying what fraction 4 is of When you are doing actual math, you need to use actual numbers. In the numerator to go from-- I need to also multiply by 25 in order to have an equivalent fraction.

You could say, well, look, if in the denominator to go from 4 toI have to multiply by This frequently comes up when using percentages. Now I can find the percentage increase over the original price.

Percent Video transcript Let's give ourselves a little bit of practice with percentages.

Calculating Percentage To calculate a percentage, you turn the numbers into a ratio as a fraction of This says that is sixteen percent of

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