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To find percentages on this calculator, or any calculator, you divide one number by the other, and multiply the result by 100.
For example, for 2 out of 5, we type in 2, hit the divide button, type in 5 and hit the equals sign and we will get 0.4. To make this into percentage, we then multiply the answer by 100 to get 40%.
Here is a sample of the percentage calculations that the calculator can perform. You will not see among them the conversion from decimals to percentages. To convert from decimals to percents move the decimal mark 2 places to the right and append the % sign. To convert from percents to decimals, move the decimal mark 2 places to the left.
You can try pressing "alpha" or "2nd" and then pressing the key you saw the percent sign on.
here is a temporary solution in case that doesn't work:to enter a percentage up to write the digits before the tens and ones (if any, and if not, just type a zero), a point, and the last two digits.ex:
56%=0.56
28%=0.28
132%=1.32
4243%=42.43
To write down the answer, take all the digits, take off the point, if the percentage is 99% or less, don't write the zero on the right of the period, and add a percent sign.
If I want 2/5 as a percentage (which is 40%), I would press
[2] [ /] [5] [%]
Instead of equal sign, I'll press % sign, which will give the answer as a percentage.
Of course this is a simple calculation. If you want advanced calculations let us know.
The percentage sign is the equal sign. Press Shift and =. However 10% is really 0.10, so it will be easier to work with since using the % usually results in syntax errors.
Hi. Try this steps on using your math calculator for the percentage function.
Hope This Helps
Step 1. Note that not all calculators behave the same way as far as the percentage key is concerned. Thus, test the examples in this article on your calculator. If your calculator does not have the percent key or does not behave in the way described here, don't despair - you can still use it to calculate percentages, it's just that you will have to press a few more buttons.
Step 2. Let's calculate a tip on your restaurant bill. Suppose your bill happens to be $64.35 and you would like to leave 15% tip.
Type the following into your calculator: 64.35 * 15 % Answer: 9.6525 or $9.65 after rounding.
Most simple calculators will give an answer right here without having to press the = sign. If yours does not, press = and see if you get the right answer.
Alternatively, you can calculate this percentage by typing in 64.35 * 15 / 100 or 64.35 * 0.15
Thus, you may have observed that all that the percent key did here was division by a hundred.
Step 3. Let's calculate a grade percentage - say you got 34 out of a maximum of 40 points.
To figure out your grade percentage type in: 34 / 40 % Answer: 85
Alternatively, without the percent key: 34 / 40 * 100
Step 4. Let's calculate a sale price on those shoes that originally cost $139, but are now discounted by 35%.
On your calculator type in: 139 - 35 % = Answer: 90.35 or $90.35
This calculation is amazingly easy with the percent key! Alternatively, you would first have to calculate what the 35% of the $139 is and then subtract it from 139: 139 * 35 / 100 = 48.65 139 - 48.65 = 90.35
Since I don't use the percent sign. Here is instead a MUCH easier way. Divide the price you bought it for (289) by the original price (648). This gives you the percentage that 289 is with respect to 648 if you just read off the first two decimal places. When you divide one number by another it will tell you how many times they 'fit' for the purpose of explaining it. That is also essentially what a percentage is out of 100 parts. so when you divide one number by another, you will get a decimal answer, just multiply it by 100 (or just take the first two decimals) and that is percent saved (percent different). Note that if the first value is LARGER than the second, you will have a percentage of over 100%.
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