Amazon Sales Estimator 📊

Estimate monthly sales from BSR, analyze market size, and benchmark competitor performance. No API key — works out of the box.

Installation

npx skills add nexscope-ai/Amazon-Skills --skill amazon-sales-estimator -g

Three Modes

Capabilities

• BSR-to-sales conversion: Estimate monthly unit sales from Best Seller Rank using category-specific formulas
• Revenue calculation: Monthly sales × price = estimated monthly revenue
• Market sizing: Aggregate sales across products in a keyword search
• Price band analysis: Distribution of sales across price ranges
• Competition breakdown: Top sellers vs long-tail distribution
• Multi-marketplace: US, UK, DE, FR, IT, ES, JP, CA, AU, IN, MX, BR

Handling Incomplete Input

If the user's intent is unclear or information is missing, guide them with all options and required inputs upfront:

User says: "Help me estimate Amazon sales" or "I want to check sales"

Agent should respond:

I can help you estimate Amazon sales in 3 ways. Pick one and provide the required info:

A. BSR Calculator — Quick estimate from BSR number

• BSR (required): e.g., 1500
• Category (required): e.g., Home & Kitchen
• Price (required): e.g., $24.99
• Marketplace (optional, default US)

B. ASIN Lookup — Check sales for a specific product

• ASIN or URL (required): e.g., B09V3KXJPB
• Marketplace (optional, default US)

C. Market Analysis — Size a keyword/niche opportunity

• Keyword (required): e.g., "yoga mat"
• Marketplace (optional, default US)
• Filters (optional): price range, min reviews

Example: "Mode A: BSR 1500, Home & Kitchen, $24.99" or "Mode B: B09V3KXJPB"

Mode A — BSR Calculator

Input

Usage Examples

Estimate sales for BSR 1500 in Home & Kitchen on Amazon US, price $24.99

BSR 500, category Electronics, marketplace DE, price €39.99

What's the monthly sales for a product ranked #10,000 in Sports & Outdoors at $15.99?

Workflow

1. Receive input: BSR, Category, Price, Marketplace
2. Look up base sales: Use BSR-to-sales reference table for the marketplace
3. Apply category multiplier: Adjust based on category (Electronics 1.2x, Clothing 0.8x, etc.)
4. Calculate monthly units: Base sales × category multiplier
5. Calculate revenue: Monthly units × price
6. Output results: Monthly units, daily units, monthly revenue

Output

# 📊 Sales Estimate

**Input:**
- BSR: #1,500 in Home & Kitchen
- Marketplace: Amazon US
- Price: $24.99

**Results:**

| Metric | Estimate |
|--------|----------|
| **Est. Monthly Units** | ~450 units |
| **Est. Monthly Revenue** | ~$11,246 |
| **Est. Daily Units** | ~15 units |

*Estimate based on BSR-to-sales conversion formula for the selected category and marketplace.*

Mode B — ASIN Lookup

Input

Usage Examples

Estimate monthly sales for ASIN B09V3KXJPB

How many units does this sell? https://www.amazon.com/dp/B0D72TSM62

Get sales estimate for B0CPY1GFVZ on Amazon DE

Workflow

1. Fetch product data using web_fetch on Amazon product page
2. Extract: Title, Price, BSR, Category, Rating, Reviews
3. Apply BSR-to-sales formula for the category and marketplace
4. Calculate revenue: Monthly units × Price

Output

# 📊 Sales Estimate: B09V3KXJPB

## Product Info
- **Title:** [Product Title]
- **Price:** $24.99
- **BSR:** #1,500 in Home & Kitchen
- **Rating:** 4.5★ (1,234 reviews)

## Sales Estimate

| Metric | Estimate |
|--------|----------|
| **Est. Monthly Units** | ~450 units |
| **Est. Monthly Revenue** | ~$11,246 |
| **Est. Daily Units** | ~15 units |

## Competitive Context
- Ranks in **top 0.5%** of Home & Kitchen category
- Above average for $20-30 price range

Mode C — Keyword Market Analysis

Input

Usage Examples

Analyze the market size for "yoga mat" on Amazon US

What's the total monthly sales for "portable blender" keyword?

Size the "dog shirt" market on Amazon US. Show top sellers and price distribution.

Workflow

1. Search products using web_search for site:amazon.com "{keyword}"
2. Fetch top 10-20 product pages to get BSR data
3. Estimate sales for each product using Mode A formula
4. Aggregate total market size
5. Analyze price distribution and competition

Output

# 📊 Market Analysis: "yoga mat"

**Marketplace:** Amazon US | **Products Analyzed:** 25

## Market Size

| Metric | Value |
|--------|-------|
| **Est. Total Monthly Units** | ~85,000 units |
| **Est. Total Monthly Revenue** | ~$2.1M |
| **Average Price** | $24.50 |

## Top 5 Sellers

| # | ASIN | Price | BSR | Est. Units/Mo |
|---|------|-------|-----|---------------|
| 1 | B0XX... | $22.99 | #45 | ~8,500 |
| 2 | B0YY... | $29.99 | #78 | ~6,200 |
| 3 | B0ZZ... | $18.99 | #120 | ~4,800 |
| ... | ... | ... | ... | ... |

## Market Concentration

- **Top 3:** 23% of total sales
- **Top 10:** 52% of total sales
- **Long tail:** 48% of total sales

→ **Fragmented market** — opportunity for new entrants

## Price Distribution

| Price Band | % of Sales |
|------------|------------|
| $0 - $20 | 25% |
| $20 - $35 | 55% |
| $35+ | 20% |

**Sweet spot:** $20-$35

BSR-to-Sales Reference

Amazon US — Baseline (Home & Kitchen)

Category Multipliers

Marketplace Adjustments

Integration with Other Skills

This skill works well when chained with other skills from the Nexscope Amazon-Skills and eCommerce-Skills repositories.

With amazon-keyword-research

npx skills add nexscope-ai/Amazon-Skills --skill amazon-keyword-research -g

Step 1: "Research keywords for yoga mat"
   → amazon-keyword-research returns keyword list with search volumes

Step 2: "Now analyze the market size for the top keyword"
   → amazon-sales-estimator Mode C sizes the opportunity

With amazon-listing-optimization

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