Shopify Admin Profit Margin Calculator

Purpose

Calculates true net profit and margin at both order-level and product-level granularity. Unlike basic revenue reports, this skill deducts all cost components — COGS (from inventoryItem.unitCost), shipping costs, transaction/payment processing fees, applied discounts, refund amounts, and duties/taxes — to surface actual margin percentages. Read-only — no mutations.

Prerequisites

• Authenticated Shopify CLI session: shopify store auth --store --scopes read_orders,read_products,read_inventory
• API scopes: read_orders, read_products, read_inventory
• For accurate results, products should have inventoryItem.unitCost populated

Parameters

| Parameter | Type | Required | Default | Description | |-----------|------|----------|---------|-------------| | store | string | yes | — | Store domain (e.g., mystore.myshopify.com) | | daysback | integer | no | 30 | Lookback window for orders | | groupby | string | no | order | Grouping: order, product, or variant | | minorders | integer | no | 1 | Minimum orders for a product to appear (product/variant mode) | | includerefunded | boolean | no | true | Include fully refunded orders in calculation | | format | string | no | human | Output format: human or json |

Safety

> ℹ️ Read-only skill — no mutations are executed. Safe to run at any time.

Workflow Steps

1. OPERATION: orders — query

Inputs: query: "created_at:>=''", first: 250, select id, name, createdAt, totalPriceSet, subtotalPriceSet, totalShippingPriceSet, totalTaxSet, totalDiscountsSet, currentTotalPriceSet, displayFinancialStatus, refunds { totalRefundedSet }, lineItems { variant { id, inventoryItem { id, unitCost { amount, currencyCode } } }, quantity, originalTotalSet, discountedTotalSet }, pagination cursor Expected output: All orders in window with full cost breakdown

1. OPERATION: inventoryItems — query

Inputs: Batch of inventoryItemIds from line item variants for any missing unitCost data Expected output: Unit cost for each inventory item

1. For each order, calculate:

• Revenue = currentTotalPriceSet.shopMoney.amount
• COGS = Σ(lineItem.quantity × variant.inventoryItem.unitCost)
• Shipping Cost = totalShippingPriceSet.shopMoney.amount (merchant-paid portion estimate)
• Discounts = totalDiscountsSet.shopMoney.amount
• Transaction Fee = estimated at 2.9% + $0.30 of total (configurable)
• Refunds = Σ(refunds.totalRefundedSet.shopMoney.amount)
• Net Profit = Revenue - COGS - Shipping - Transaction Fee - Refunds
• Margin % = (Net Profit / Revenue) × 100

1. If group_by: product or variant, aggregate profits by product/variant across all orders

1. OPERATION: productVariants — query (enrichment)

Inputs: Variant IDs from profitable/unprofitable items for product title context Expected output: Product titles, SKUs for display

GraphQL Operations

# orders:query — validated against api_version 2025-01
query OrdersWithCosts($query: String!, $after: String) {
  orders(first: 250, after: $after, query: $query) {
    edges {
      node {
        id
        name
        createdAt
        displayFinancialStatus
        totalPriceSet { shopMoney { amount currencyCode } }
        subtotalPriceSet { shopMoney { amount currencyCode } }
        totalShippingPriceSet { shopMoney { amount currencyCode } }
        totalTaxSet { shopMoney { amount currencyCode } }
        totalDiscountsSet { shopMoney { amount currencyCode } }
        currentTotalPriceSet { shopMoney { amount currencyCode } }
        refunds {
          totalRefundedSet { shopMoney { amount currencyCode } }
        }
        lineItems(first: 50) {
          edges {
            node {
              quantity
              originalTotalSet { shopMoney { amount currencyCode } }
              discountedTotalSet { shopMoney { amount currencyCode } }
              variant {
                id
                sku
                inventoryItem {
                  id
                  unitCost { amount currencyCode }
                }
                product {
                  id
                  title
                }
              }
            }
          }
        }
      }
    }
    pageInfo { hasNextPage endCursor }
  }
}

# inventoryItems:query — validated against api_version 2025-01
query InventoryItemCosts($ids: [ID!]!) {
  nodes(ids: $ids) {
    ... on InventoryItem {
      id
      unitCost { amount currencyCode }
    }
  }
}

# productVariants:query — validated against api_version 2025-01
query VariantDetails($ids: [ID!]!) {
  nodes(ids: $ids) {
    ... on ProductVariant {
      id
      sku
      title
      product { id title vendor }
    }
  }
}

Session Tracking

Claude MUST emit the following output at each stage. This is mandatory.

On start, emit:

╔══════════════════════════════════════════════╗
║  SKILL: Profit & Margin Calculator           ║
║  Store:                        ║
║  Started:              ║
╚══════════════════════════════════════════════╝

After each step, emit:

[N/TOTAL]   
          → Params: 
          → Result: 

On completion, emit:

For format: human (default):

══════════════════════════════════════════════
PROFIT & MARGIN REPORT  ( days)
  Orders analyzed:     
  Total Revenue:       $
  Total COGS:          $
  Total Shipping:      $
  Total Tx Fees:       $
  Total Refunds:       $
  ─────────────────────────────
  Net Profit:          $
  Overall Margin:      %

  Top profitable products:
    ""  Margin: %  Profit: $
  Bottom margin products:
    ""  Margin: %  Profit: $
  Output: profit_report_.csv
══════════════════════════════════════════════

For format: json, emit:

{
  "skill": "profit-margin-calculator",
  "store": "",
  "period_days": 30,
  "orders_analyzed": 0,
  "total_revenue": 0,
  "total_cogs": 0,
  "total_shipping": 0,
  "total_tx_fees": 0,
  "total_refunds": 0,
  "net_profit": 0,
  "overall_margin_pct": 0,
  "currency": "USD",
  "output_file": "profit_report_.csv"
}

Output Format

CSV file profit_report_.csv with columns: order_id, order_name, date, revenue, cogs, shipping, discounts, tx_fees, refunds, net_profit, margin_pct

For product grouping: product_id, product_title, vendor, units_sold, revenue, cogs, net_profit, margin_pct

Error Handling

| Error | Cause | Recovery | |-------|-------|----------| | THROTTLED | API rate limit exceeded | Wait 2 seconds, retry up to 3 times | | Missing unitCost | Product COGS not set | Flag as "unknown COGS" — include in report but exclude from margin calc | | Refunded orders | Fully refunded | Include with $0 net revenue if include_refunded: true |

Best Practices

• Populate inventoryItem.unitCost on all products for accurate COGS. Without it, margins cannot be calculated.
• Adjust transaction fee estimate based on your payment processor (default 2.9% + $0.30 matches Shopify Payments US).
• Use group_by: product to identify which products are margin-positive vs. margin-negative.
• Cross-reference with stock-velocity-report to find fast-selling but low-margin items that may need repricing.
• Use results with bulk-price-adjustment to increase prices on margin-negative products.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: 40RTY-ai
• Source: 40RTY-ai/shopify-admin-skills
• License: MIT
• Homepage: http://skills.40rty.ai

Install and usage instructions live in the source repository linked above.