how to do percentage calculation? when to times hundred and when to divide hundred?
92631
To calculate percentage:\n\nDivide the part by the whole.  10 cats out of  100 cats is equal to 10 divided by 100 or .10. You then you multiple by 100 to get the percentage.   .10 times 100 equals 10 percent.\n\nIf you know the percentage:\n\nDivide by 100 and then multiple the whole by the resulting number to get the portion. 10 percent of 100 cats equals 10 divided by 100 times 100. 10 divided by 100 equals .10 now .10 times 100 equals 10 or 10 cats out of 100 cats.
469353
divide the numbers (not the percentages) by 100
795217
The first thing to remember about percentages is that they represent a fraction who's denominator (bottom term) is 100 - for example, 40% is the same as 40/100 = 4/10 = 2/5.  And the second is something I learned in math class about 40 years ago about percentage word problems - "percent" over "100" equals "is" over "of".  Burn that into your brain.  How do you use it? In your problem, "40" is the "percent", and "85" is the "of" (because it comes right after the "of"). So using the rule, your problem is:\n\n40/100 = is/85\n\nThere's no "is" in you problem, therefore it must be the answer we have to solve for, right?  So now you cross-multiply:\n\n40*85 = 3400, and 3400/100 = 34, which is the answer.\n\nWhat if your problem asked, "What percent of 85 is 34?" \n\n34 is the "is" since it comes right after the word "is" in the problem, and 85 is still the "of" since it comes right after the "of", and since the problem asks "What percent...", percent is what we have to solve for.  So using the rule, the problem sets up to:\n\npercent/100 = 34/85 \n\nNow cross multiply again:\n 34*100 = 3400, and 3400/85 = 40, so 40 is the "percent", and therefore the answer!  One more example: "34 is 40% of what?"  This time, it looks like "of" is what we have to find, so the problem sets up to:\n\n40/100 = 34/"of"\n\nCross multiply again:\n\n100*34 = 3400, and 3400/40 = 85\n\nSee how easy percentage word problems are?  Practice 30 problems like this, and don't forget that "percent over 100 equals "is" over "of", and remember how to cross-multiply.\n\nGaryH
698919
50.7%\n\nLet me tell you how you do it, though. Just divide 38 by 75 and then multiply by 100. Take a few seconds and learn the math, ok?\n\nSomeone gave me a thumbs down. Guess they thought I was being mean. I was just trying to encourage you to learn how to figure percentages on your own. You won't always have Yahoo Answers there to help you. Good luck.
109233
convert a % to a fraction by putting the number over 100.  For example, 34% is 34/100.  which is also .34 as a decimal.
358099
0.43 & 0.0062\n\nDivide by 100
682159
6 % for the first one\n85% for the second\n\nto get that, you divide the numerator by the denominator to get the decimal.  Than you move the decimal two places over to get the percentage.
774443
for these types of problems. all u have to do is change around the words to symbols, and then u got ur equation\n\njust remember "is" is the same thing as =\njust remember "of" is the same thing as * or times (multiplication)\n\n0.06 is what percent of 250\n0.06 = n% times 250\n (divide 0.06 by 250)\nsolve\n\ndo the same thing for the other problem
896273
to write a % as a fraction, just put it over 100. e.g.  60%  + 60/100.\n(This simplifies to 6/10) Then, to convert it to decimals,  put a decimal point in front of it.  e.g. 60% = 60/100 or .6
740897
to write it as a decimal, divide the numerator by the denominator. Like, for  3/2, divide 3 by 2, which gives 1.5\n\nto write as a percent, just multiply the fraction with 100. Like, for 1/4,  \n1/4 * 100 = 25. So, 1 is 25% of 4.
153952
10,500\n\nto check, multiply 10,500 by 4. since 10,500 equals 25%, and 25% times 4 equals 100%, then 4 times 10,500 should equal 42,000. and it does, eh?
479004
When you change a decimal to a percent you can do 2 things you can take the decimal point and move it 2 places to the right OR you can multiply it by 100\nTo change a percent to a decimal you do the opposite.  You can take decimal and move it 2 places to the left or divide the number by 100
84074
5/20*100=25%\nthat is simple maths
805977
(75-25)*100/25\n50*100/25\n200%
1186873
25!\n\n25%=.25\n\n100*.25 (move the decimal point two places to the right) =25\n\nThanks for the 25% of 8 points.
980465
Divide the numerator (top number of the fraction) by the denominator (bottom fraction number) then multiple by 100%
283727
well... if you want them to approximate... \n\nPercent basically breaks down to "per 100"... cent meaing 100.\n\nSo, have them move the decimal place in both numbers to the point where you're getting a number close to 100.\n\nin this case 99.26 and 109.35\n\nApproximating 99 and 110 so it'd be something like 90-92%