Percent Increase - YourTeacher.com - Pre Algebra Help

For a complete lesson on percent increase, go to http://www.yourteacher.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn to find the percent increase or percent decrease between two numbers, using the following formula: amount of change/ original number. For example, to find the percent decrease if the price changes from $60 to $39, since the amount of change is $21, and the original number is $60, the percent decrease is $21/$60, which simplifies to 0.35. And remember that the answer is a percent, so move the decimal point two places to the right, to get 35%. So if the price changes from $60 to $39, the percent decrease is 35%.

Category:

Education

Tags:

• Percentage
• Increase
• percent
• increase
• formula
• calculate
• change
• decrease
• math

[Ax07605]

im grateful but she sounds like we are all retards talking very slow maybe its just me

[lukeyobuck12]

why it took my teach an hour to teach me this and i still dont get it when you teach it in two seconds and i understand it perfectly is beyond me

[dochtherocklobster19]

@Ax07605 Who cares what she sounds like, this video is helpful!

[cdeegan6]

Thanks it helps alot but you dont have to talk like your giving god a lecture

[Sugarbabii27]

-__-

the thing is that i need to know what the ORIGINAL number is when i have the increase number and i have the percentage.

UGHH anybody else annoyed of her voice??

[EWPBPSstealth]

@callahankev bye, no just kidding :)

[callahankev]

Hi



[lunaxapple]

Couldnt pay attention i was just looking at those s'mall spider bites :(

[bass4ever777]

@BaxterLad12 If my calculations are correct then the baby increased his weight with 20% !

[bass4ever777]

@BaxterLad12 Well... think like that: if the second number would've been 220 then the increase is 100%; if the 2nd number is 330 the increase is 200%. Here the number is 440 so 110 increased 3 times, hence the 300% increase! Thanks for the explanation madam !

[BaxterLad12]

@yourteachermathhelp

I've got this question which I'm really stuck on,

A baby ways 4 kilograms when he is born. One month later he ways 4.8 kilograms. Work out the percentage increase.