Say you've got 1,000 different items. If they fall neatly in line with the 80/20 rule, you'll have 200 A items, 300 B items, and 500 C items. If you're going to count your A items once a month, or 12 times a year, that's 200 items x 12 = 2,400 counts. That means that over the course of the year, you have to perform 2,400 separate counts of your A-class items. Say you work 240 days a year, that means you...
