The defective rate of 9 out of 60 products is 15%. Calculation formula of defective rate: defective rate = number of defective products/tot
The defective rate of 9 out of 60 products is 15%. Calculation formula of defective rate: defective rate = number of defective products/total production * 100%, so 9/60 *100% = 0.15 *100% =15%. A simple understanding of the defective rate is the proportion of unqualified products to the total number of products, which is a key indicator to measure the quality of production. Defective products do not meet the quality requirements of raw materials, semi-finished products and products, among which the quality requirements are the inspection quality requirements of inspection products, the quality requirements of manufacturing process, the quality requirements of customers and the provisions of national laws and regulations.