Percent IIPercent II

by Monica Yuskaitis

DefinitionDefinition

Percent can be defined as “of one hundred.”

100of

20 % Means20 % Means20 parts out of 100 or 20 hundredths.

100999897969594939291

90898887868584838281

80797877767574737271

70696867666564636261

60595857565554535251

50494847464544434241

40393837363534333231

30292827262524232221

20191817161514131211

10987654321

Percents Have Equivalents in Percents Have Equivalents in Decimals and FractionsDecimals and Fractions

20% .20 20100

15= = =

Decimal FractionFraction

SimplifiedPercent

How to Find the Percent of a How to Find the Percent of a Whole NumberWhole Number

The first thing to remember is “of” means multiply in mathematics.

of = x

How to Find the Percent of a How to Find the Percent of a Whole NumberWhole Number

Step 1 - When you see a percent problem you know when you read “of” in the problem you multiply.

25% of 200x

How to Find the Percent of a How to Find the Percent of a Whole NumberWhole Number

Step 2 – Change your percent to a decimal and then move it two places to the left.

25% x 200..

How to Find the Percent of a How to Find the Percent of a Whole NumberWhole Number

Step 3 – Multiply just like a regular decimal multiplication problem.

200x .251000

+4005000

How to Find the Percent of a How to Find the Percent of a Whole NumberWhole Number

Step 4 – Place the decimal point 2 places to the left in your answer.

200x .251000

+4005000.

What is the percent of this number?What is the percent of this number?

820x .20

000+164016400.

20 % of 820.. x

What is the percent of this number?What is the percent of this number?

725x .40

000+290029000.

40 % of 725.. x21

What is the percent of this number?What is the percent of this number?

692x .60

000+415221520.

60 % of 692.. x15