ROT

ABC Analysis Calculator

Classify SKUs into A, B, and C tiers based on revenue contribution. Paste a list and get instant classification.

Inputs

Enter your numbers

One SKU per line, format: name,revenue

Result

Your calculation

Classification

3 A · 1 B · 3 C

Total SKUs

7

Total Revenue

$33400.00

A Share of Revenue

79.3%

C Share of Revenue

7.2%

Formula Used

A: top 80% of revenue · B: next 15% · C: last 5%

SKURevenueShareCumulativeClass
SKU-A$12000.0035.9%35.9%A
SKU-B$8500.0025.4%61.4%A
SKU-C$6000.0018.0%79.3%A
SKU-D$4500.0013.5%92.8%B
SKU-E$1200.003.6%96.4%C
SKU-F$800.002.4%98.8%C
SKU-G$400.001.2%100.0%C
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Formula

A: top 80% of revenue · B: next 15% · C: last 5%

ABC analysis ranks SKUs by revenue, computes the cumulative share, and classifies items into A (top ≈80% of revenue), B (next ≈15%), and C (last ≈5%). Apply different inventory policies by class.

Worked Example

With seven SKUs totaling $33,400 in revenue, the top two SKUs ($20,500 — 61% cumulative) are A items, the next three ($11,700 — to ≈96%) are B items, and the bottom two are C items. You would set higher service levels for A items and consider phasing out C items.

Frequently Asked Questions

What thresholds should I use?+

A common split is 80/15/5. Some operators use 70/20/10. Pick a split and apply it consistently.

Can I use gross profit instead of revenue?+

Yes — profit-weighted ABC often gives a more strategic classification, especially in low-margin categories.

How often should I rerun ABC analysis?+

Quarterly is standard, monthly for fast-moving or trend-sensitive categories.

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Deep-dive guides that explain the math behind this calculator.

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