Inventory Turnover & Analysis


True or False

Inventory turnover measures how quickly inventory is sold
True

Higher turnover always means poor performance
False
Higher turnover usually indicates efficiency | unless too high causing stockouts

DIO measures the number of days inventory is held
True

Average inventory uses beginning and ending inventory
True


Fill in the Blanks

1. Inventory turnover = COGS ÷ average inventory

2. Average inventory = (Beginning + Ending) ÷ 2

3. DIO = 365 ÷ Inventory Turnover

4. Low turnover may indicate slow-moving / excess inventory


Calculation Practice

A business reports
Beginning Inventory = $15,000
Ending Inventory = $25,000
COGS = $80,000

Tasks
Calculate average inventory
Calculate inventory turnover
Calculate DIO


Step 1

Average Inventory
(15,000 + 25,000) ÷ 2 = 20,000


Step 2

Inventory Turnover
80,000 ÷ 20,000 = 4 times


Step 3

Days Inventory Outstanding
365 ÷ 4 = 91.25 days


Final Answers

Average Inventory
$20,000

Inventory Turnover
4 times

DIO
91.25 days


Interpretation | Sample Answers

State whether each situation is Good or Bad and explain

Very high inventory turnover
Good | with caution
indicates strong sales but may risk stock shortages

Very low inventory turnover
Bad
indicates slow sales or overstocking

High DIO
Bad
inventory stays too long | possible obsolescence

Low DIO
Good
inventory moves quickly


Mini Case Study | Model Answers

A retail company has declining inventory turnover over three years.

Questions

What does declining turnover indicate?
Slower sales or increasing inventory levels

What problems might the company face?
Overstocking
Higher storage costs
Obsolete inventory
Reduced cash flow

Suggest two ways to improve inventory turnover
Improve sales | marketing, promotions
Reduce excess inventory
Better demand forecasting
Discounts on slow-moving items

How does turnover affect profitability?
Higher turnover improves cash flow and reduces holding costs, increasing profitability.


Quick Quiz

What is inventory turnover?
The number of times inventory is sold and replaced during a period.

How is average inventory calculated?
(Beginning Inventory + Ending Inventory) ÷ 2

What does high DIO mean?
Inventory is held for a long time.

Why is inventory turnover important?
It measures efficiency and helps manage stock levels and profitability.

Name one way to improve inventory turnover.
Increase sales
Reduce excess inventory
Better forecasting.

Introduction to Cost Accounting ➧ Here