See the solutions to these problems just after the percentage calculator below.

Percentage Calculator 1

What is % of ?

Answer:

Percentage Calculator 2

is what percent of ?

Answer: %

Percentage Calculator 3

is % of what?

Answer:

How to work out percentages - Step by Step

Here are the solutions to the questions stated above:

1) What is 6.8% of 21?

Always use this formula to find a percentage:

% / 100 = Part / Whole replace the given values:

6.8 / 100 = Part / 21

Cross multiply:

6.8 x 21 = 100 x Part, or

142.8 = 100 x Part

Now, divide by 100 and get the answer:

Part = 142.8 / 100 = 1.428

2) 6.8 is what percent of 21?

Use again the same percentage formula:

% / 100 = Part / Whole replace the given values:

% / 100 = 6.8 / 21

Cross multiply:

% x 21 = 6.8 x 100

Divide by 21 and get the percentage:

% = 6.8 x 100 / 21 = 32.380952380952%

Sample percentage problems