1. Suppose that $4,900 worth of a particular item is used each year, it costs $50 to place an order, and inventory carrying costs are estimated at 25%. What is the dollar amount of the economic order quantity?

2. Suppose that $4,900 worth of a particular item is used each year, and the item costs $7 per unit. It costs $50 to place an order, and inventory carrying costs are estimated at 25%. What number of units represents the economic order quantity?

3. Are there other ROI approaches to evaluate organisational impact through the use of learning interventions?