We already have our first value 12 and the second value 21. 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 Y = 21/12
STEP 2 Y = 21/12 × 100/100 = 175/100
STEP 3 Y = 175
Finally, we have found the value of Y which is 175 and that is our answer.
You can use a calculator to find what percent of 12 is 21, just enter 21 ÷ 12 × 100 and you will get your answer which is 175
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Here is a calculator to solve percentage calculations such as what percent of 12 is 21. 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.
Let's solve the equation for Y by first rewriting it as: 100% / 12 = Y% / 21
Drop the percentage marks to simplify your calculations: 100 / 12 = Y / 21
Multiply both sides by 21 to isolate Y on the right side of the equation: 21 ( 100 / 12 ) = Y
Computing the left side, we get: 175 = Y
This leaves us with our final answer: 175 percent of 12 is 21