Now let’s get down to business!
Create a new table. The first column has the item name, the second one is about sales volume or profit for the specific period.
- Arrange the second column in descending order.
- Add the third column with the share of profit of each product. Don’t forget to recheck: the sum of all the values in this column equals 100.
- Create the 4th column. It’s accrued in total. For example, if our first product — pens — has a share of 15% in the third column, we write 15%. If the second product — pencils — have 10%, we write 10%+15%=25% in the 4th column, etc. Let’s check ourselves: the last product also has to have a number of 100% next to it.
- If the accrued total is less than 80%, the product goes to group A. Products in a range of 80 to 95% are sent to group B. All the rest is obviously a C.
Companies with a wide range of products usually have about 20% of goods in group A, 30% in group B, and about 50% in group C. And those 50% bring in less than 5% of the profits!