Week #3 Lesson #3:Finding Percent Increase or Decrease

Front

What is percent increase?

Back

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

Front

How do you calculate percent change?

Back

Percent change = (New Value - Old Value) / Old Value × 100%.

Front

If a store's price increases from $20 to $23, what is the percent increase?

Back

15% increase.

Front

If attendance at a festival increased from 2,376 to 2,950, what is the percent change?

Back

24% increase.

Front

What is the formula for calculating percent decrease?

Back

Percent decrease = (Old Value - New Value) / Old Value × 100%.

Front

If a bike is bought for $550 and sold for $680, what is the percentage profit?

Back

23.6% profit.

Front

What does a 20% increase mean in terms of original value?

Back

It means the new value is 120% of the original value.

Front

If a price drops from $12 to $8, what is the percent decrease?

Back

33% decrease.

Front

What is the difference between absolute change and percent change?

Back

Absolute change is the actual difference in value, while percent change expresses that difference as a percentage of the original value.