Calculate rolling 12-month inventory turns using live ERP data in spreadsheets

using Coefficient google-sheets Add-in (500k+ users)

Calculate rolling 12-month inventory turns using live ERP data in spreadsheets with dynamic formulas and automated historical data management for accurate analysis.

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Rolling 12-month inventory turns provide more accurate performance insights than static period calculations by automatically adjusting the analysis window as new data becomes available from your ERP system.

You’ll discover how to set up dynamic calculations that continuously update your rolling inventory turnover analysis using live ERP data connections and automated historical data management.

Set up dynamic rolling calculations using Coefficient

Coefficient excels at calculating rolling 12-month inventory turns using live ERP data by providing continuous NetSuite connectivity with historical data management. NetSuite’s standard reports typically show static periods, while Coefficient enables dynamic rolling calculations that automatically update as new data becomes available.

How to make it work

Step 1. Import historical data with buffer periods.

Use Coefficient’s Records & Lists to import 15 months of transaction history (extra buffer for calculations) by importing Item Fulfillment and Item Receipt records with date filters like Date >= TODAY()-450. Set up automated daily refresh to continuously add new transactions while maintaining the rolling window.

Step 2. Create dynamic date range formulas.

Build formulas that automatically adjust the 12-month window: Rolling COGS using =SUMIFS(Transaction_Cost, Transaction_Date, “>=”&TODAY()-365, Transaction_Date, “<="&TODAY(), Item_ID, A2) and rolling average inventory with =AVERAGE(INDIRECT("Inventory_Value_"&TEXT(TODAY()-365,"YYYYMM")&":Inventory_Value_"&TEXT(TODAY(),"YYYYMM"))). Calculate rolling turnover as =Rolling_COGS/Rolling_Average_Inventory.

Step 3. Set up automated historical snapshots.

Use Coefficient’s scheduled imports to capture monthly inventory snapshots and create separate sheets for each month’s inventory values. Build formulas that reference these historical snapshots for accurate average calculations that maintain data integrity over time.

Step 4. Optimize performance for continuous updates.

Leverage Coefficient’s SuiteQL queries to pre-calculate monthly summaries in NetSuite before import, use filtering to focus on active items only, and implement data archiving strategy to maintain performance as historical data grows over time.

Start tracking rolling inventory performance

This approach provides continuously updating rolling 12-month inventory turns that reflect real-time business performance without manual period adjustments or outdated data. Begin building your dynamic inventory analysis with Coefficient.

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