How to Calculate Defective Percentage?

Calculating the Defective Percentage in the Garments Industry involves identifying and quantifying the number of Defective Garments relative to the total number of Garments Produced. 

How to Calculate Defective Percentage in Garments Industry? Here's a step-by-step guide on how to calculate this:

Steps to Calculate Defective Percentage:

1. Count the Total Number of Garments Produced:

   • This includes all garments produced in a specific period, such as a day, week, or month.

2. Identify the Defective Garments:

   • Inspect each garment for defects. Common defects might include stitching errors, fabric flaws, misaligned patterns, etc.
   • Count the total number of defective garments.

3. Calculate the Defective Percentage:

   • Use the following formula: $$\text{Defective Percentage}=\left(\frac{\text{Number of Defective Garments }}{\text{Total Number of Garments Produced}}\right)\times 100$$

Example Calculation:

Let's say a factory produces 10,000 garments in a month. Upon inspection, 250 garments are found to be defective.

1. Total Number of Garments Produced: 10,000
2. Number of Defective Garments: 250

Using the formula:

Quality Control Tips:

• Regular Inspections: Conduct regular quality checks at different stages of production to identify defects early.
• Training: Ensure that workers are well-trained in recognizing and preventing common defects.
• Root Cause Analysis: If the defective percentage is high, analyze the root causes and implement corrective measures.

Tools and Methods:

• Statistical Process Control (SPC): Use SPC tools to monitor and control the production process.
• Quality Control Charts: Implement charts like the Pareto chart or control charts to track defects and their frequencies.
• Six Sigma Methodology: Apply Six Sigma techniques to reduce defects and improve overall quality.

How to Calculate Defective Percentage in Garments Industry? Following these steps and implementing effective quality control measures, you can minimize the defective percentage and improve the overall quality of the garments produced.