Percentage Increase & Decrease

Front

What is a percentage increase?

Back

A percentage increase is a way to express how much a quantity has grown relative to its original amount, calculated as: ((new value - original value) / original value) * 100.

Front

What is a percentage decrease?

Back

A percentage decrease is a way to express how much a quantity has reduced relative to its original amount, calculated as: ((original value - new value) / original value) * 100.

Front

How do you calculate the new weight of an object after a percentage increase?

Back

To calculate the new weight after a percentage increase, use the formula: new weight = original weight + (percentage increase * original weight).

Front

How do you calculate the new weight of an object after a percentage decrease?

Back

To calculate the new weight after a percentage decrease, use the formula: new weight = original weight - (percentage decrease * original weight).

Front

If a dog's weight is 125% of its original weight of 30kg, what is its current weight?

Back

37.5 kg (calculated as 30kg * 1.25).

Front

What is the formula to find the percent increase between two numbers?

Back

Percent Increase = ((new number - old number) / old number) * 100.

Front

What is the formula to find the percent decrease between two numbers?

Back

Percent Decrease = ((old number - new number) / old number) * 100.

Front

If the number of people increased from 32 to 45, what is the percent increase?

Back

41% (calculated as ((45 - 32) / 32) * 100).

Front

How do you find the original price of an item after a discount?

Back

To find the original price after a discount, use the formula: original price = sale price / (1 - discount rate).

Front

If a book is sold for $70 after a 20% discount, what was its original price?

Back

$87.50 (calculated as 70 / (1 - 0.20)).