What is Inventory Turnover Ratio and How to Track It in a Dashboard

Inventory turnover ratio is the key metric for measuring how efficiently your business converts inventory investment into revenue. It directly determines how much working capital is tied up in stock at any given time.

Inventory Turnover Formula

Inventory Turnover Ratio = Cost of Goods Sold (COGS) ÷ Average Inventory Value

Where:

• COGS = Total cost of products sold in the period (from Tally P&L)
• Average Inventory = (Opening Inventory + Closing Inventory) ÷ 2

Days Inventory Outstanding (DIO) — the complementary metric:

DIO = 365 ÷ Inventory Turnover Ratio

A turnover ratio of 6 = DIO of ~61 days (meaning inventory sits for ~60 days before being sold).

Interpreting Inventory Turnover

High turnover (good in most cases):

• Inventory is moving quickly — less storage cost, less waste risk
• Working capital is efficiently deployed
• Can indicate strong demand or lean inventory management

Low turnover (usually a problem):

• Products are sitting in the warehouse too long
• Working capital is tied up unnecessarily
• Risk of obsolescence, expiry, or quality degradation

Excessively high turnover (may indicate risk):

• Inventory may be too lean — stockout risk increases
• May signal that you're under-buying and missing sales opportunities

Industry Benchmarks for India

Tracking Inventory Turnover in a Dashboard

Data required: Monthly COGS (from P&L) and average inventory value (from stock ledger). Both available from Tally.

What to show in the dashboard:

• Current inventory turnover ratio vs target
• Trend over 12 months (is turnover improving or declining?)
• Inventory turnover by category (identify slow vs fast-moving categories)
• Items with the lowest individual turnover (dead stock candidates)
• DIO trend (are days outstanding increasing?)

Drill-down analysis: When company-level turnover declines, drill down to which categories or SKUs are driving it — usually 20% of SKUs account for 80% of excess inventory value.

Improving Inventory Turnover

Reduce excess stock: Use demand-based reorder quantities rather than fixed safety stock for all SKUs.

Identify and clear dead stock: Regular clearance promotions or return-to-supplier arrangements for items below threshold turnover.

Improve demand forecasting: Better forecasts reduce both stockouts (lost sales) and overstock (excess investment).

Negotiate better lead times: Shorter supplier lead times allow lower safety stock without stockout risk.

See analytics for inventory management for the full operational analytics guide.