How do i find the percentage key - Texas Instruments TI-30XA Calculator

To find the percentage of a number: Let's say you want to find 20% of 150.

• Enter the number you want to find the percentage of (150 in this example).
• Press the multiplication key (*).
• Enter the percentage value (20 in this example).
• Press the percentage key (%).

The calculator will display the result, which in this case is 30 (20% of 150 is 30

Not all calculators have a percentage key. I think of percent as per cent, or per 100. You can always multiply by 100 to get the percentage.

For example, 0.23 as a percent would be 0.23 x 100 or 23%.

Good luck.

Paul

On most Casio calculators you must type: '175 x 20 % -' (and '+' is for adding a percentage)

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.

Hi. What do you mean by 'set' a percentage key. Is there a percentage key on the keyboard already? are you trying to set a rate? If you want to use it for discounting, you just type an amount to discount in REG mode and press %- to remove it. Please describe your use and I'll try to help

Sorry, but you cannot calculate percentages at the pressing of a key. The calculator does not have a key for that. You will have to do it yourself.
To convert a decimal result to a percentage, multiply it by 100: MOVE the decimal mark two places to the right.
To convert a percentage into a decimal number, divide the number by 100: MOVE the decimal mark two places to the left.

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

Hope This Helps

log onto e-bay and purchase a vairiable percentage key. when you buy one use the diagrams that come with it to lower the percentage on your machine, lowering the percentage will give the same game play but less chance of winning higher amounts, thus lowering payouts

I have a Casino MS-80S and yea, the percentage works different. As example to take 100 and subtract 10%, this is what I do: 100 X 10% - and then I get the answer 90 after I press the minus key. To add the percentage instead, 100 X 10% + will give me an answer of 110, after I press the plus key.

I've been searching for the solution to this problem, as well. Apperently, there's no user's manual for this calculator. I'm going to call Casio on Monday to see if they can send me some sort of instructions. (800)962-2746 or (609)395-0154



good luck!!