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Calculate what percentage of x is y


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#1 procode200

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Posted 24 January 2020 - 04:56 PM

Suppose I have Calculate what percentage of 880 is 660. How can I do this on the fx-CG50?


Edited by procode200, 24 January 2020 - 05:01 PM.


#2 pan.gejt

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Posted 24 January 2020 - 06:44 PM

directly compute 660/880=0,75 or 75% or use solver: 880 × x = 660


Edited by pan.gejt, 24 January 2020 - 06:45 PM.

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#3 Krtyski

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Posted 30 January 2020 - 05:03 AM

procode200

 

At first you should understand what is about %.

The percentage is one of expressions about ratio of 2 numbers.

 

To get ratio of x and y, calculate x / y. then you get  fraction. 

When you want to express the ratio in the other way using %, (x/y) times 100 is percentage.

This is principle.

 

Now you know x = 660 and y = 880, then follow the principle.

The ratio is 660/880 = 0.75

ratio 0.75 in percentage is 75%.

 

Do not just remember how to calculate, remember its principle. So it's going to more hard to forget.

 

If you like this way of thinking you it will give you better chance to learn more easily.


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