Calculation of First Time Right in Excel

Introduction

The concept of "First Time Right" (FTR) is a measure often used in quality control and process efficiency. It indicates the percentage of items produced correctly without any defects on the first attempt.

Formula

To calculate the First Time Right percentage in Excel, use the following formula:

= (Number_of_First_Time_Right / Total_Number_Produced) * 100

Where:

• Number_of_First_Time_Right: Represents the count of items produced correctly on the first attempt.
• Total_Number_Produced: Represents the total count of items produced.

Explanation of Formula Components

1. Numerator: This value counts the number of items that passed quality checks without any defects on the first attempt.
2. Denominator: This total count includes all items produced, whether they were successful or required rework.
3. Multiplication by 100: This converts the ratio into a percentage, making it easier to interpret.

Practical Example

Assume you have the following data represented in an Excel sheet:

• Cell A1: Number of First Time Right = 80
• Cell B1: Total Number Produced = 100

To find the First Time Right percentage, you would enter the following formula in cell C1:

= (A1 / B1) * 100

Breakdown of the Example

• A1 = 80: 80 items were produced correctly on the first attempt.
• B1 = 100: 100 items were produced in total.
• C1 Calculation:
  • FTR = (80 / 100) * 100 = 80%

Thus, the value displayed in cell C1 would be 80%, indicating that 80% of the items were produced correctly on the first attempt.

Conclusion

Understanding the First Time Right metric is crucial for evaluating production efficiency and quality control. The provided formula enables a straightforward calculation of this metric using Excel, facilitating better decision-making in process improvement initiatives. To further enhance your data analysis skills, consider exploring courses offered on the Enterprise DNA Platform.