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Year-over-year (YOY) is a metric that compares the performance of a business or investment over a specific period of time. By analyzing YOY changes, you can identify trends, track progress, and make informed decisions about your business or investment strategies. In this article, we'll guide you through the process of calculating YOY without diving into the exact formula, helping you better understand this metric.
The formula for calculating year-over-year (YOY) growth is as follows:
Year-Over-Year (YOY) Growth = (Current Period Value - Previous Period Value) / Previous Period Value
Let's consider a real-world example of a retail business that wants to calculate its year-over-year (YOY) growth in revenue. We'll use the following data:
First, we need to find the difference between the revenue in the current period (2021) and the previous period (2020):
Revenue Difference = Revenue in 2021 - Revenue in 2020
Revenue Difference = $1,200,000 - $1,000,000
Revenue Difference = $200,000
Next, we'll divide the Revenue Difference by the Revenue in the previous period (2020) to calculate the YOY growth:
YOY Growth = Revenue Difference / Revenue in 2020
YOY Growth = $200,000 / $1,000,000
YOY Growth = 0.2 or 20%
In this example, the retail business experienced a 20% year-over-year growth in revenue from 2020 to 2021.
Understanding year-over-year (YOY) growth is important for several reasons, including:
Here are some strategies that can help improve your YOY growth:
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