Percent of Change Word Problems

Front

What is percent of change?

Back

Percent of change is a way to express how much a quantity has increased or decreased in relation to its original amount, calculated as (new value - original value) / original value × 100%.

Front

How do you calculate percent increase?

Back

To calculate percent increase, use the formula: ((new value - original value) / original value) × 100%.

Front

How do you calculate percent decrease?

Back

To calculate percent decrease, use the formula: ((original value - new value) / original value) × 100%.

Front

If a population increases from 2,410 to 5,500, what is the percent increase?

Back

The percent increase is approximately 128.6%.

Front

If a taco truck ordered 3,000 pounds of cheese last year and 2,100 pounds this year, what is the percent decrease?

Back

The percent decrease is 30%.

Front

What is the formula for finding the new value after a percent increase?

Back

New value = original value × (1 + percent increase).

Front

What is the formula for finding the new value after a percent decrease?

Back

New value = original value × (1 - percent decrease).

Front

If a tomato plant grows from 4.5 inches to 11.25 inches, what is the percent increase in height?

Back

The percent increase in height is 150%.

Front

If 832 copies of a book were sold in the first year and 12.5% less in the second year, how many copies were sold in the second year?

Back

728 copies were sold in the second year.

Front

What does a percent change of 0% indicate?

Back

A percent change of 0% indicates that there has been no change in the value.