**Introduction**

Calculating week-over-week changes is a common practice in various fields, especially in finance and business analytics. This method allows individuals to assess the percentage change in a particular metric over consecutive weeks, providing valuable insights into trends and performance. To facilitate this process, a user-friendly Week Over Week Calculator has been designed using HTML and JavaScript.

**How to Use**

The usage of the Week Over Week Calculator is straightforward. Simply input the values for the two weeks you want to compare, and click the “Calculate” button. The calculator will then display the week-over-week percentage change in the result area within the form.

**Formula**

The formula for calculating week-over-week percentage change is:

$Week Over Week % Change=Week 1 Value(Week 2 Value−Week 1 Value) ×100$

**Example**

Let’s consider an example. If the sales for Week 1 were $5,000 and for Week 2 were $6,000, the week-over-week percentage change would be:

$Week Over Week % Change=5000(−) ×100=20%$

**FAQs**

**Q: How accurate is the Week Over Week Calculator?**

**A:** The calculator uses a precise mathematical formula, ensuring accurate week-over-week percentage change calculations.

**Q: Can this calculator handle negative values?**

**A:** Yes, the calculator can handle negative values, providing a comprehensive analysis of fluctuations.

**Q: Is it possible to calculate the percentage change for non-numeric values?**

**A:** No, the calculator is designed specifically for numeric values such as sales, revenue, or any measurable metric.

**Conclusion**

The Week Over Week Calculator presented here offers a convenient tool for assessing the percentage change in metrics over consecutive weeks. Its user-friendly interface and accurate calculations make it an invaluable asset for professionals in various industries.