# 30 percent of forty two Dollars

Using this tool you can find any percentage in three ways. So, we think you reached us looking for answers like: What is 30 (30%) percent (%) of forty two (42)? Or may be: 30 percent of forty two Dollars. See the solutions to these problems just after the percentage calculator below.

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

## How to work out percentages - Step by Step

Here are the solutions to the questions stated above:

### 1) What is 30% of 42?

Always use this formula to find a percentage:

^{%} / _{100} = ^{Part} / _{Whole} replace the given values:

^{30} / _{100} = ^{Part} / _{42}

Cross multiply:

30 x 42 = 100 x Part, or

1260 = 100 x Part

Now, divide by 100 and get the answer:

Part = ^{1260} / _{100} = 12.6

### 2) 30 is what percent of 42?

Use again the same percentage formula:

^{%} / _{100} = ^{Part} / _{Whole} replace the given values:

^{%} / _{100} = ^{30} / _{42}

Cross multiply:

% x 42 = 30 x 100

Divide by 42 and get the percentage:

% = ^{30 x 100} / _{42} = 71.428571428571%