?How do you say "growth rate" in English? What is the definition of growth rate?

Growth rate refers to the percentage increase or decrease of a specific value over a certain period of time. It is often used to measure the performance or progress of a company, economy, or population. In mathematical terms, it is calculated by dividing the change in value by the original value and multiplying it by 100.

In English, "growth rate" can also be referred to as "rate of growth" or "percentage change." It is commonly used in business and economics, but can also be applied to other fields such as biology and demographics.

For example, if a company's revenue increased from $1 million to $1.5 million in one year, its growth rate would be 50% ($500,000 increase divided by $1 million original value multiplied by 100). This indicates that the company has experienced significant growth in its revenue.

Similarly, if a country's population grew from 100 million to 110 million in five years, its growth rate would be 10% (10 million increase divided by 100 million original value multiplied by 100). This shows that the country's population is increasing at a steady pace.

The concept of growth rate is important for businesses and governments as it helps them track progress and make informed decisions. A high growth rate can indicate success and potential for further expansion, while a low or negative growth rate may signal problems that need to be addressed.

In summary, "growth rate" refers to the percentage change of a specific value over time and is an important measure for assessing performance and progress. Its definition may vary slightly depending on the context but remains an essential concept in various fields.