**15**% is 10% + 5% (or 0.15 = 0.1 + 0.05, dividing each percent by 100). First, it's easy to multiply any

**number**by 0.1; just move the decimal point left one digit.

Also asked, how do you find 80% of a number?

Find a percentage of a

**number**or**calculate**a percentage based on two**numbers**. How to find**80**% of a**number**? Take the**number**and multiple it by**80**. Then multiply that by .Subsequently, question is, how do you find 10% of a number?

To calculate

**10**percent of a**number**, simply divide it by**10**or move the decimal point one place to the left. For example,**10**percent of 230 is 230 divided by**10**, or 23. 5 percent is one half of**10**percent. To calculate 5 percent of a**number**, simply divide**10**percent of the**number**by 2.How do you find a percentage of a number on a calculator?

If your

**calculator**has a**percentage**button, the calculation is as follows: 40 x 25% = 10. If your**calculator**does not have a**percentage**button, you must first divide the**percentage**by 100: 25 ÷ 100 = 0.25. You can then multiply this answer by the whole to determine the part: 0.25 x 40 = 10.How do you find 6% of a number?

Multiply by the Decimal

Multiply 0.06 times the **number**from which you are seeking

**6**percent. For example, to find

**6**percent of 100, work out 0.06 x 100 =

**6**. Another example:

**6**percent of 75 is 0.06 x 75 = 4.5.