You can find 5 percent of any number in 4 seconds using this trick. So what is the trick?

Trick: Divide the number by 2 and move the decimal point one place to the left. The process just involves two easy steps as shown in the following examples.

**Example #1**: 5% of 36

**Step 1**: Divide 36 by 2.

36/2 = 18 = 18.0

**Step 2**: Move the decimal point one place to the left.

1.8

5% of 36 = 1.8

**Example #2**: 5% of 180

**Step 1**: Divide 180 by 2.

180/2 = 90 = 90.0

**Step 2**: Move the decimal point one place to the left.

9.00

5% of 180 = 9

**Example #3**: 5% of 13

**Step 1**: Divide 13 by 2.

13/2 = 6.5

**Step 2**: Move the decimal point one place to the left.

0.65

5% of 13 = 0.65

**Example #4**: 5% of 650

**Step 1**: Divide 650 by 2.

650/2 = 325 = 325.0

**Step 2**: Move the decimal point one place to the left.

32.50

5% of 650 = 32.5