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πŸš€ Mastering E-Commerce Performance: Accurately Calculating COGS, Sales & Fulfillment Costs

Running an e-commerce business, especially in retail or D2C, means managing multiple vendors, fluctuating costs, and countless orders. How do you track profitability accurately?

At I&S Accounting SVCS, LLC, we help e-commerce businesses streamline finances and gain actionable insights. Let’s break it down with a real-world example:


πŸ“Œ The Challenge: Understanding True COGS

You sell custom-designed T-shirts through Shopify and work with multiple vendors:

βœ… Vendor A: Supplies blank T-shirts

βœ… Vendor B: Handles custom printing

βœ… Vendor C: Provides packaging

Each cost adds up to your Cost of Goods Sold (COGS) per T-shirt.


πŸ”’ Step 1: Calculating COGS per Unit

To find true COGS:

➑️ Blank T-shirt: $5.00

➑️ Printing: $3.00 ➑️ Packaging: $1.00

➑️ Total COGS per T-shirt: $9.00

This is your baseline cost per unit.


πŸ“¦ Step 2: Cross-Referencing Shopify Orders & Fulfillment Data

Your Shopify store provides:

πŸ’° Sales price: $25 per T-shirt

πŸŽ‰ Discounts: $5 off (promotion)

πŸ”„ Refunds: $0 (no returns this time)

πŸ“Š Net sales: $20 per T-shirt

But you also have fulfillment costs:

🚚 Shipping: $4 per order

πŸ“¦ Pack-out fee: $2 per order

Align these costs with your Shopify order numbers for accurate tracking.


πŸ“Š Step 3: Analyzing Performance Per Order

Example: You sold 2 T-shirts in one order

βœ… Total Sales: $50

βœ… Discounts: -$10

βœ… Net Sales: $40

βœ… COGS (2 T-Shirts): $18

βœ… Fulfillment Costs: $6 (Shipping: $4 + Pack-out: $2)

βœ… Gross Profit: $16


πŸ“ˆ Step 4: Scaling Up for Deeper Insights

Tracking this for every order helps you:

βœ” Identify trends (e.g., higher fulfillment costs during peak seasons)

βœ” Optimize pricing, discounts & supplier costs

βœ” Improve profit margins with bulk order incentives

Example: If orders with 3+ T-shirts have lower fulfillment costs per unit, offer bulk discounts to encourage larger purchases.


πŸ“Œ Extra Insights for Better Profitability

βœ… Track Inventory Turnover: Slow-moving items might need pricing adjustments.

βœ… Include Payment Processing Fees: Shopify, PayPal & Stripe take a cut from sales.

βœ… Monitor Return Rates: High returns impact profitsβ€”analyze product quality & customer expectations.

βœ… Consider Advertising Costs: Facebook, Google & TikTok ads affect net profitability.

βœ… Understand Customer Lifetime Value (CLV): Repeat buyers = More stable revenue.


🎯 Why This Matters

Accurate data = Better decisions & higher profits.

At I&S Accounting SVCS, LLC, we help businesses like yours leverage financial data for growth.

πŸ’‘ Want expert help? Let’s talk! πŸ“© [email protected] πŸ”— https://iandsaccountingsvcs.com/contact-us/


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