Percentage increase and decrease

In this math lesson we explore how to increase or decrease an amount by a given percentage - through simple multiplication.
The method for doing this type of percentage problem is as follows, where we find 35 increased by 20%.
First we start with the whole amount - in this case 35. Percentages describe a number expressed as a fraction of 100, so as 35 is the whole amount it is 100% or 100/100 or 1. To take off 20% we are taking off 20/100 or 0.2 of this - so 1 - 0.2 = 0.8.
0.8 of 35 is the same as 0.8 x 35 = 28.0.

[oatea-goblin]

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[mr.sleepyhead]

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[yazanaldinho]

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[juliusjager]

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[charlotte]

What my last brain cell doing math:





*I AM CONFUSION!*

[wolfkinggamerhd]

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[pochi]

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[nosir]

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[ibrahimkashif]

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[gamerawesome]

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[nightshxdeNAM]

A way you can decrease easier is if for example you have 70-40% 70x100-40=4200÷100

[Jin]

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[mhrkh.s]

God bless you! Thank you soo much this helped a lot! Now i finally know the formula

[werewolfkid]

I learned more from an 8 minute video then what my teacher taught me in a month

[telluri]

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[michellecumberland]

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[kys]

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[captainghost]

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[aaliyainjoyfulvideo]

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