# Question: 100 is 80 percent of what number

## Step by step solution for calculating 100 is 80 percent of what number

We already have our first value 100 and the second value 80. Let's assume the unknown value is Y which answer we will find out.

As we have all the required values we need, Now we can put them in a simple mathematical formula as below:

STEP 1 100 = 80% × Y

STEP 2 100 = 80/100× Y

Multiplying both sides by 100 and dividing both sides of the equation by 80 we will arrive at:

STEP 3 Y = 100 × 100/80

STEP 4 Y = 100 × 100 ÷ 80

STEP 5 Y = 125

Finally, we have found the value of Y which is 125 and that is our answer.

You can easily calculate 100 is 80 percent of what number by using any regular calculator, simply enter 100 × 100 ÷ 80 and you will get your answer which is 125

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Here is a Percentage Calculator to solve similar calculations such as 100 is 80 percent of what number. You can solve this type of calculation with your values by entering them into the calculator's fields, and click 'Calculate' to get the result and explanation.

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## Sample questions, answers, and how to

Question: Your friend has a bag of marbles, and he tells you that 80 percent of the marbles are red. If there are 100 red marbles. How many marbles does he have altogether?

How To: In this problem, we know that the Percent is 80, and we are also told that the Part of the marbles is red, so we know that the Part is 100.

So, that means that it must be the Total that's missing. Here is the way to figure out what the Total is:

Part/Total = Percent/100

By using a simple algebra we can re-arrange our Percent equation like this:

Part × 100/Percent = Total

If we take the "Part" and multiply it by 100, and then we divide that by the "Percent", we will get the "Total".

Let's try it out on our problem about the marbles, that's very simple and it's just two steps! We know that the "Part" (red marbles) is 100.

So step one is to just multiply that Part by 100.

100 × 100 = 10000

In step two, we take that 10000 and divide it by the "Percent", which we are told is 80.

So, 10000 divided by 80 = 125

And that means that the total number of marbles is 125.

Question: A high school marching band has 100 flute players, If 80 percent of the band members play the flute, then how many members are in the band?

Answer: There are 125 members in the band.

How To: The smaller "Part" in this problem is 100 since there are 100 flute players and we are told that they make up 80 percent of the band, so the "Percent" is 80.

Again, it's the "Total" that's missing here, and to find it, we just need to follow our 2 step procedure as the previous problem.

For step one, we multiply the "Part" by 100.

100 × 100 = 10000

For step two, we divide that 10000 by the "Percent", which is 80.

10000 divided by 80 equals 125

That means that the total number of band members is 125.

## Have time and want to learn the calculation?

Let's assume the unknown value is Y

First writing it as: 100% / Y = 80% / 100

Drop the percentage marks to simplify your calculations: 100 / Y = 80 / 100

Multiply both sides by Y to move Y on the right side of the equation: 100 = ( 80 / 100 ) Y

Simplifying the right side, we get: 100 = 80 Y

Dividing both sides of the equation by 80, we will arrive at 125 = Y

This leaves us with our final answer: 100 is 80 percent of 125

## Percentage Table

 100 is 80 percent of 125 100.01 is 80 percent of 125.013 100.02 is 80 percent of 125.025 100.03 is 80 percent of 125.038 100.04 is 80 percent of 125.05 100.05 is 80 percent of 125.063 100.06 is 80 percent of 125.075 100.07 is 80 percent of 125.088 100.08 is 80 percent of 125.1 100.09 is 80 percent of 125.113 100.1 is 80 percent of 125.125 100.11 is 80 percent of 125.138 100.12 is 80 percent of 125.15 100.13 is 80 percent of 125.163 100.14 is 80 percent of 125.175 100.15 is 80 percent of 125.188 100.16 is 80 percent of 125.2 100.17 is 80 percent of 125.213 100.18 is 80 percent of 125.225 100.19 is 80 percent of 125.238
 100.2 is 80 percent of 125.25 100.21 is 80 percent of 125.263 100.22 is 80 percent of 125.275 100.23 is 80 percent of 125.288 100.24 is 80 percent of 125.3 100.25 is 80 percent of 125.313 100.26 is 80 percent of 125.325 100.27 is 80 percent of 125.338 100.28 is 80 percent of 125.35 100.29 is 80 percent of 125.363 100.3 is 80 percent of 125.375 100.31 is 80 percent of 125.388 100.32 is 80 percent of 125.4 100.33 is 80 percent of 125.413 100.34 is 80 percent of 125.425 100.35 is 80 percent of 125.438 100.36 is 80 percent of 125.45 100.37 is 80 percent of 125.463 100.38 is 80 percent of 125.475 100.39 is 80 percent of 125.488
 100.4 is 80 percent of 125.5 100.41 is 80 percent of 125.513 100.42 is 80 percent of 125.525 100.43 is 80 percent of 125.538 100.44 is 80 percent of 125.55 100.45 is 80 percent of 125.563 100.46 is 80 percent of 125.575 100.47 is 80 percent of 125.588 100.48 is 80 percent of 125.6 100.49 is 80 percent of 125.613 100.5 is 80 percent of 125.625 100.51 is 80 percent of 125.638 100.52 is 80 percent of 125.65 100.53 is 80 percent of 125.663 100.54 is 80 percent of 125.675 100.55 is 80 percent of 125.688 100.56 is 80 percent of 125.7 100.57 is 80 percent of 125.713 100.58 is 80 percent of 125.725 100.59 is 80 percent of 125.738
 100.6 is 80 percent of 125.75 100.61 is 80 percent of 125.763 100.62 is 80 percent of 125.775 100.63 is 80 percent of 125.788 100.64 is 80 percent of 125.8 100.65 is 80 percent of 125.813 100.66 is 80 percent of 125.825 100.67 is 80 percent of 125.838 100.68 is 80 percent of 125.85 100.69 is 80 percent of 125.863 100.7 is 80 percent of 125.875 100.71 is 80 percent of 125.888 100.72 is 80 percent of 125.9 100.73 is 80 percent of 125.913 100.74 is 80 percent of 125.925 100.75 is 80 percent of 125.938 100.76 is 80 percent of 125.95 100.77 is 80 percent of 125.963 100.78 is 80 percent of 125.975 100.79 is 80 percent of 125.988
 100.8 is 80 percent of 126 100.81 is 80 percent of 126.013 100.82 is 80 percent of 126.025 100.83 is 80 percent of 126.038 100.84 is 80 percent of 126.05 100.85 is 80 percent of 126.063 100.86 is 80 percent of 126.075 100.87 is 80 percent of 126.088 100.88 is 80 percent of 126.1 100.89 is 80 percent of 126.113 100.9 is 80 percent of 126.125 100.91 is 80 percent of 126.138 100.92 is 80 percent of 126.15 100.93 is 80 percent of 126.163 100.94 is 80 percent of 126.175 100.95 is 80 percent of 126.188 100.96 is 80 percent of 126.2 100.97 is 80 percent of 126.213 100.98 is 80 percent of 126.225 100.99 is 80 percent of 126.238