easy way to work out pecentages and decimals?

Answer 1

read this --> http://www.purplemath.com/modules/percents.htm

Answer 2

Suppose that you want 25% of 150.0:
work out what 1% of 150.0 is first,by moving the decimal point two places to the left. This gives you 1.5. This is 1%, but you want 25%
so you multiply 1.5 by 25 which gives you 37.5 which is 25% of 150.
The easiest way to work out decimals is by reading the handbook of; and using a scientific calculator. Plug in e.g. 1/3 you will get out
0.3333 and vice versa.

Answer 3

to convert a decimal to a percentage round to the hundredth and move the decimal two places back

ex: .23156= 23%

to convert a ratio to a percentage divide the numerator by the denominator and convert the decimal

ex: 21/28 = 75 %

Answer 4

If its converting percentage to decimals just move the decimal two places to the left and now you have the decimal equivalent.

The reverse also is true. Decimal to percentage - move the decimal two places to the right.

Answer 5

What percentage is a small number of a big number. 100 divided by Big number, mutliplied by small number = percent.
e.g. what percentage is 30 of 200. 100 / 200 * 30. = 15%

What is 200 plus 15%, add 15 to 100, divide by 100 and multiply. 200 * 1.15 = 230.

Gets easier with practice.

Answer 6

% to decimal: % means per hundred. To change to decimal, drop the % sign & move decimal point 2 places to the left.

Ex 37% = 0.37 [37 hundredths]
Ex. 16.5% = 0.165

To convert decimal to %, add the % sign and move the decimal point 2 places to the right.

Ex. 0.125 = 12.5%
Ex 0.5 = 50%

Answer 7

Let's say you need to find out 28% of £345. Just get a calculator and multiply 345 by 0.28 Simple.

Answer 8

You can find out the % of anything if you rember that

100% of 100 = 100
50% of 100 = 50
25% of 100 = 25
1% of 100 = 10

eg. 17.5% vat of say £60
10% = £6.00
5% = £3.00
2.5% =£1.50
total = £10.50 + £60 = £70.50

Answer 9

Hello....the easiest way i know is:
E.g:
Find 30% out of 190
30x190=5700. 5700/100=57! There you go!
I dont no what you mean by decimals as it is a vast topic!
Pls define your question.

Answer 10

1/2 = .5
1/3 = .3333(repeating)
1/4 = .25
1/5 = .2
1/6 = .16666(repeating)
1.7 = .142756 (repeating)
1/8 = .125
1/9 = .11111(repeating)
1/10 = .1
1/11 = .0909090909(repeating)
etc.

Answer 11

if you have a calculator with % button use that eg 17.5% of 100 would bee 100x17.5% = 17.5