Master Your Amazon Profitability

Learn how to use the Profit Calculator, Categories, and Bookmarking to make smarter sourcing decisions

💰 How the Profit Calculator Works

The extension calculates real profit using your custom cost inputs - not just revenue

📐 The Profit Formula

Revenue = Price × Quantity
Total Fees = (Referral Fee × Qty) + (FBA Fee × Qty) + Storage Fee + Additional Costs
Total Costs = (COGS × Qty) + (Shipping × Qty) + (Ads × Qty) + (Revenue × Return Rate %)
Net Profit = Revenue - Total Fees - Total Costs
Margin = (Net Profit / Revenue) × 100%
ROI = (Net Profit / Total Costs) × 100%
💡 Key Insight: The calculator multiplies ALL costs by the Quantity setting. Set Quantity=2 for a 2-pack product, and everything scales automatically!

⚙️ Settings You Control (Per Profile)

📦 Product Cost (COGS) - Your cost to buy/manufacture
🚚 Shipping to Amazon - Cost to send inventory to FBA
📢 PPC Ads Cost - Estimated advertising per unit
🔄 Return Rate (%) - Estimated product returns
🏪 Storage Fee - Monthly storage per unit
📬 FBA Fee - Amazon's fulfillment fee
📊 Referral Fee (%) - Amazon's commission (customizable!)
🔢 Quantity - Units per sale (multiplies all costs)
⚠️ Important: Amazon's referral fees vary by category! Electronics = 8%, Clothing = 17%, Most categories = 15%. Always set the correct percentage for accurate profit calculations.

📊 Real-World Case Scenarios

See how different products perform with the same profit calculator settings

✅ High-Profit Winner

📈 +45% Margin
Product: Bluetooth Headphones
Selling Price: $49.99
Product Cost: $12.00
Shipping to Amazon: $1.50
FBA Fee: $4.75
Referral Fee (15%): $7.50
PPC Ads: $3.00
Storage Fee: $0.25
Return Rate (5%): $2.50
Total Costs: $31.50
💰 Net Profit: $18.49
📊 Margin: 37% | 📈 ROI: 59%

⚠️ Break-Even Product

📊 2% Margin
Product: Phone Case (Generic)
Selling Price: $12.99
Product Cost: $4.00
Shipping to Amazon: $0.80
FBA Fee: $3.22
Referral Fee (15%): $1.95
PPC Ads: $2.00
Storage Fee: $0.10
Return Rate (8%): $1.04
Total Costs: $13.11
💰 Net Profit: -$0.12
📊 Margin: -1% | 📈 ROI: -1%
💡 What went wrong? Low price + high PPC costs = no profit. Fix: Raise price to $14.99 or lower ad spend.

📦 High-Volume Winner

Quantity: 6-Pack
Product: Kitchen Utensils (6-Pack)
Selling Price: $24.99
Quantity Setting: 6 (multiplies everything!)
Per-Unit Price: $4.17
Total Product Cost (6 units): $18.00
Total FBA Fee (6 units): $19.32
Total Referral Fee (15%): $3.75
PPC (per sale): $2.00
Total Costs: $43.07
💰 Net Profit: $6.87 per sale
📊 Margin: 14% | 📈 ROI: 16%
💡 Key Insight: Setting Quantity=6 automatically multiplied ALL costs!

🌍 Domain-Specific Scenarios

How different marketplaces affect your profit calculation

🇺🇸 Amazon.com vs 🇬🇧 Amazon.co.uk

Same product, different profit
Product: Wireless Mouse
US Price: $19.99
US Profit: +$4.32 (22% margin)
UK Price: £17.99
UK Profit: +£2.15 (12% margin)
⚠️ Why the difference? UK has higher FBA fees (£0.25 minimum referral fee) and different exchange rates. Always create separate profiles per marketplace!

🇪🇺 EU Marketplace (Germany/France/Italy/Spain)

European format handling
Product: Electronics Accessory
Price: €29,99 (comma as decimal!)
Referral Fee (15%): €4,50
FBA Fee: €3,22
Net Profit: +€8,27
💡 Automatic Formatting: The extension automatically converts "€29,99" to 29.99 for calculations, then formats back to "€29,99" for display!

📁 Organize with Categories (Two-Way Sync)

Categories work BOTH ways - add profiles to categories OR add categories to profiles

📌 Method 1: Add Categories to a Profile

🎯 When to use this: When editing a profile, you want to assign it to existing categories.
1
Click ✏️ Edit on any profile card
2
Scroll to the 🏷️ Categories section in the modal
3
Check the boxes next to categories you want to assign
4
Click Save Profile - category chips appear on the profile card!
💡 Result: The profile appears in the Categories tab under each selected category, and category chips show on the profile card.

📌 Method 2: Add Profiles to a Category

🎯 When to use this: When viewing a category, you want to add multiple profiles at once.
1
Go to the Categories tab in sidebar
2
Click + Add Profiles on any category
3
Search and select profiles to add (checkboxes)
4
Click Add to Category - profiles are now linked!
💡 Result: All selected profiles now show this category chip and appear in the category's profile list.
🔄 Real Example: Two-Way Sync in Action

Scenario: You create a category called "🏆 High Margin (>30%)"

Option A: Edit the "Electronics" profile → Check "High Margin" box → Profile now shows the category chip
Option B: Go to Categories tab → Click "+ Add Profiles" on "High Margin" → Select "Electronics" → Same result!

✨ Either way works! The relationship is bidirectional and automatically syncs.

📋 Managing Categories

➕ Create Category

Click "New Category" in Categories tab, choose name, emoji, and color

Auto-detects existing categories

✏️ Edit Category

Click ✏️ Edit on any category to change name, emoji, or color

Updates all profile chips automatically

🗑️ Delete Category

Delete a category - profiles become "Uncategorized" (no data loss!)

Profiles retain all bookmarked products

📊 Category Performance Dashboard

🏆 High-Performing Products

Profiles with margin > 30%

📊 3 profiles | 💰 Total Profit: $12,450
📈 Avg Margin: 42% | ✅ 23 profitable products

⚠️ Needs Optimization

Profiles with margin 10-20%

📊 2 profiles | 💰 Total Profit: $3,210
📈 Avg Margin: 15% | 🔧 8 products to improve

🌍 International Expansion

UK, Germany, France marketplaces

📊 4 profiles | 💰 Total Profit: $8,920
🌐 3 marketplaces | 📦 47 total products
🎯 Pro Tips for Categories:
  • 🏷️ By Niche: Electronics, Home & Kitchen, Beauty, Toys
  • 💰 By Profitability: High Margin (30%+), Medium (15-30%), Low (<15%)
  • 📦 By Source: Alibaba Sourced, Wholesale, Dropship, Private Label
  • 🌍 By Marketplace: US, UK, Germany, Japan, Canada
  • 📊 By Season: Q4 Holiday, Back-to-School, Summer Deals
  • ⚠️ By Restriction: Gated Categories, Hazmat, IP Risk
Click the Categories tab in the sidebar to create your own categories today!

🔖 Bookmark Products from Amazon Pages

Save any product to your research profiles directly from Amazon search results or product pages
🛒
Browse Amazon
Search results or product page
→
⭐
Click ★ Bookmark
On any product badge
→
📁
Select Profile
Choose which research profile
→
✅
Saved!
View in sidebar under profile

🔍 Bookmark from Search Results

Every product in Amazon search results gets an information badge with a ★ Bookmark button.
1
Search for any product on Amazon
2
Look for the Amazon Quick View Pro badge below each product
3
Click ★ Bookmark button on the badge
4
Select a profile from the popup → Product saved!
💡 The badge shows ASIN, Title, Rating, Seller Info, BSR, and Profit Calculation before you even click!

📄 Bookmark from Product Page

Individual product pages have a detailed badge with extended information.
1
Open any product detail page (/dp/ASIN)
2
Scroll to find the badge (below price section)
3
Click ★ Bookmark button
4
Choose profile → Product saved with ALL data (including images!)
💡 Product page badges include the product image, full BSR breakdown, and more detailed seller info.

📋 Managing Your Bookmarks

📖 View Bookmarks

Open sidebar → Profiles tab → Expand any profile to see all bookmarked products

Products show price, rating, profit, BSR, seller info

🔄 Update Bookmark

Click the ★ button again → Select "Update Bookmark" from dropdown → Refreshes all data

Updates price, BSR, rating, profit with latest values

✕ Remove Bookmark

Click the ★ button → Select "Remove Bookmark" from dropdown → Product removed

Removes from all profiles (confirmation required)
⭐ Bookmark Button Features (Click to see dropdown):
  • ★ Bookmark - First-time save (opens profile selector)
  • ★ Bookmarked ▼ - Already saved (click for dropdown menu)
  • 🔄 Update Bookmark - Refresh product data (price, BSR, rating, profit)
  • ✕ Remove Bookmark - Delete from all profiles

💾 What Gets Saved When You Bookmark

📊 Product Information

ASIN (unique identifier)
Title & Short Title
Price & Price Value
Rating & Review Count
BSR Entries (all categories)
Product URL
Product Image URL

💰 Seller & Profit Data

Seller Name
Is Amazon Sold?
Is FBA?
Buy Box Owner
Net Profit (calculated)
Profit Margin & ROI
Profit Currency & Domain
Last Updated Timestamp
⚠️ Important Notes:
  • Profit is calculated using the selected profile's settings at the time of bookmarking
  • Different profiles = different profit calculations for the same product!
  • Use "Update Bookmark" to refresh data with current profile settings
  • Bookmarks sync to the cloud - accessible across all your devices
💡 Pro Tip - Use Multiple Profiles for the Same Product:
  • Create "Conservative" profile (higher costs) vs "Aggressive" profile (lower costs)
  • Bookmark the same product to both profiles to compare scenarios
  • See how different FBA fees or shipping costs affect profitability
  • Make data-driven sourcing decisions!

🔧 Step-by-Step Setup Guide

Get accurate profit calculations in 5 minutes
1

Create a Research Profile

In the sidebar, click "New Product Profile". Give it a name like "Electronics Sourcing" and select your Amazon domain (amazon.com for US, amazon.co.uk for UK, etc.).

2

Enter Your Costs

Fill in your actual numbers:

  • Product Cost (COGS): What you pay your supplier
  • Shipping to Amazon: Freight cost per unit
  • FBA Fee: Use Amazon's FBA Revenue Calculator to find this
  • Referral Fee %: 15% for most, 8% for electronics, 17% for clothing
  • Quantity: Set to number of units per pack (e.g., 2 for a 2-pack)
3

Add Additional Costs (Click the + button)

Many sellers forget these hidden fees:

  • 🇺🇸 Media Closing Fee: $1.80 for books/DVDs (Fixed cost)
  • 🌍 Digital Service Tax: 2-3% for EU/UK sales (Percentage cost)
  • 🔧 Prep/Inspection Fee: If using a 3PL service
  • 📦 Packaging/Insert Costs: Custom boxes, thank you cards
4

Assign Categories (Optional but Recommended)

In the profile modal, scroll to the Categories section and check boxes for relevant categories. Or go to Categories tab → "+ Add Profiles" to add this profile later.

5

Set as Active Profile

Click the checkbox or "Set as Active Profile" button. This profile will now be used for all badge calculations on Amazon pages.

6

Start Researching & Bookmarking!

Browse Amazon - badges will appear showing profit calculated with YOUR costs. Click ★ to bookmark products to your profile for later analysis.

⚠️ Common Mistakes to Avoid:
  • Wrong Referral Fee % - Electronics are 8%, NOT 15%!
  • Forgetting Minimum Fees - US charges min $0.30, UK min £0.25, etc. The extension handles this automatically!
  • Missing Media Closing Fees - Add $1.80 as Additional Cost for books/DVDs
  • Wrong Quantity Setting - A 3-pack priced at $30 should have Quantity=3, not Quantity=1 with $30 price
  • Not Using Categories - Categories help you track performance across product types and make better decisions!
💡 Pro Tips for Maximum Accuracy:
  • 📬 FBA Fee: Always check Amazon's FBA Revenue Calculator for your product's exact size tier
  • 📊 Referral Fee: Look up your category in Amazon's Referral Fee Schedule
  • 📦 Quantity Setting: If you sell a 2-pack for $19.99, set Quantity=2 and Price=$19.99 (the calculator divides price per unit automatically)
  • 🌍 Multiple Marketplaces: Create separate profiles for each domain (amazon.com vs amazon.co.uk) with correct FBA fees for each
  • 🏷️ Categories: Create categories for different sourcing strategies and use the dashboard to compare performance
  • 🔄 Update Bookmarks: Use the Update Bookmark feature weekly to keep profit calculations current with changing prices/BSR

📋 Quick Reference: Referral Fees by Category

Use these percentages in your profile settings
Category Referral Fee Notes
Electronics8%Accessories under $100 are 15%
Clothing & Accessories17%Plus $1.80 closing fee for under $15
Books, DVD, Music15%Plus $1.80 closing fee (US)
Home & Kitchen15%Standard rate
Beauty15%Standard rate
Toys & Games15%Holiday adjustments possible
Sports & Outdoors15%Standard rate
Jewelry20%Under $250, 5% over $250
Furniture15%10% over $200
🚀 Start Researching on Amazon →

Already have the extension? Open the side panel and create your first profile!