How to work the percentage of any amount instantly

This percentage trick is so easy - and you should know it if you are a regular here!
Forgotten it? That's OK...youtube and tecmath has your back - with this, the easiest way to work out percentages of an amount.

[douglasnewman]

As per usual, I’m amazed that we are not taught this method in school. Your channel is such a great resource. I’m learning so much. Thanks very much!

[jennifercampbell-klomps]

I used to be scared of figures and watching this method is bringing a smile to my face again! 😁

[huzzzer]

I wish you were my math teacher when I was still in school...

[math]

knew this one tec, great refresher for those who forgot, amazing technique

[alarissacamila]

I am incredibly grateful for your work. I watch it for fun now, math is so cool.

[Robbie_S]

This is helping me so much in many ways. I love your soft and kind voice. It helps to learn easy and better. I'm gonna try for other numbers now. Thank you Sir ❤️

[anthonydesouza]

I found it easier to do “40% of 13” instead. Which is 10% of 13 (1.3) times four = 5.2.

You mentioned this briefly with 32% of 75, but I think it deserves a mention. Always try to find the easier percent — generally the one that’s divisible by numbers like 5/10/25/etc :)

[parmanyugodara]

Your tricks are pure awesome and fun
Plus your voice make them more exciting

[j.taylor]

I also noticed that when you do a percentage of a two digit number ending in 0 like the first two examples, it's the tens place times the percentage number then move the decimal point one space left in the answer: 13 x 4 = 52, make it 5.2.

[pax]

i swear your channel is a life saver i have loads of test coming up soon and this rlly helps😩

[shaileshgautam]

I wish I knew you in my school time. You are a great teacher sir, respect!

[dhy]

It's also useful to understand that A% of B is exactly the same as B% of A. This sometimes allows for quick mental calculations. Thus, 17% of 30 is the same as 30% of 17, or .3 thimes 17 = 5.1

[listairgin]

Brilliant explanation! Thank you so much. 👍

[stefanm]

Thanks so much for this. You explain it beautifully and its actually good fun!

[marileejoan]

I'm happy at my age to find some help with my percentages. I need more examples with your answers! It's amazing how I am disabled with solving match equations.

[SlazeM]

I have loved your videos ever since I was in high school.

[tapmuf]

Math teacher: just use my method!! you'll fail!!!
techmath: no, no I don't think I will

[IS-pydk]

This type of trick is also there for division of imperfect numbers
I will show
Lets say 15 ÷ 4
Now make different parts of number 4 as follows:
1 part of 4 = 4
2 parts of 4 = 8
3 parts of 4 = 12
Now the closest 1 we have is 3 parts = 12
To get to 15 we need 3 more than 12 which means that we do not need a full part of 4
So we will take 3 parts out of the number 4 which means we need 3/4 more than 12
So we got 3 parts of 4 = 12 and 3/4 parts of 4
So ( 3 + 3/4 ) × 4 = 15
Easy ☺

[Commentify]

100%=40
10%=4
1%=0, 4
So 5, 2

BTW i found this way myself i actually try find easy ways my self.

[johnrokosky]

I forced myself to learn a different way (MOSTLY self taught) which is not unlike your method, I really do like this, it is smooth. Basically it was to flop the numbers around until you had something to work with that was closer to 10. Such as 31% of 70, you could easily flop it around to 70% of thirty one. Sometimes I did the tenth like you. If I would have seen this video when I was 6 yo, it would have saved me many an angry night.