Percent Increase & Decrease (Finding OG and New amount)

Front

What is percent increase?

Back

Percent increase is a measure of how much a quantity has grown relative to its original amount, expressed as a percentage.

Front

What is percent decrease?

Back

Percent decrease is a measure of how much a quantity has shrunk relative to its original amount, expressed as a percentage.

Front

How do you calculate the original amount (OG) from a percent increase?

Back

To find the original amount, divide the new amount by (1 + percent increase as a decimal).

Front

How do you calculate the original amount (OG) from a percent decrease?

Back

To find the original amount, divide the new amount by (1 - percent decrease as a decimal).

Front

What is the formula to find the new amount after a percent increase?

Back

New Amount = Original Amount x (1 + percent increase as a decimal).

Front

What is the formula to find the new amount after a percent decrease?

Back

New Amount = Original Amount x (1 - percent decrease as a decimal).

Front

Calculate 9% of 50.

Back

4.5

Front

If there are 60 students this year and it's a 150% increase from last year, how many students were there last year?

Back

24

Front

If a book costs $4.25 and is marked up by 30%, what is the selling price?

Back

$5.53

Front

Ms. Savani reads 340 pages a week and increases her reading by 32%. How many pages does she read in Quarter 2?

Back

449 pages