Ryan Cole
Senior Ecommerce Analyst at EcomCalcTools
Ryan has spent 8+ years analyzing cross-border ecommerce financials — building and maintaining the calculators behind EcomCalcTools. His work focuses on platform fee structures (Amazon FBA, Shopify, Stripe, PayPal), ad performance metrics (ROAS, ACOS), and DTC brand profitability models. He regularly benchmarks data against official platform documentation to ensure every calculator reflects current 2026 rates.
Articles by Ryan Cole
All articles are reviewed quarterly and updated when platforms change their fee structures or launch new pricing tiers.
Email Marketing ROI in 2026: Average Returns & How to Calculate Yours
2026 benchmarks: $36 per $1 spent (36x ROI) for ecommerce. Learn the formula, see industry comparisons, and use our free calculator.
Amazon FBA Fees 2026: Complete Breakdown & Calculator
Full 2026 fee schedule: 6–17% referral + $3.22–$52/unit fulfillment. Includes seasonal storage, long-term fees, and calculator tool.
Shopify Pricing 2026: Plans, Fees & Hidden Costs
Compare Basic ($39), Standard ($105), and Advanced ($399) plans. Transaction fees broken down by Shopify Payments vs Stripe/PayPal.
Stripe Fees 2026: Full Pricing Breakdown & Calculator
Standard: 2.9% + $0.30. Volume discounts bring it to 2.2% at $80K+/month. ACH, Radar, and international fees explained.
Amazon FBA Storage Fees 2026: Peak Season & Long-Term
Jan–Sep: $0.78/cu ft. Oct–Dec peak: $2.40. Items >365 days: $6.90. Calculator included.
Amazon PPC ACOS Guide 2026: How to Calculate & Optimize
ACOS formula, benchmarks by category (15–40%), break-even analysis, and how TACOS gives the full advertising profitability picture.
How to Calculate ROAS (Return on Ad Spend) in 2026
ROAS = Revenue from Ads ÷ Ad Spend. Minimum healthy: 3:1. Most profitable ecommerce stores target 4:1 to 6:1.
SaaS Churn Rate in 2026: What Healthy Looks Like
Benchmark: 5% monthly for SMB, 3% for mid-market, 1% for enterprise. How reducing churn by 1% affects ARR valuation.
Editorial Note: All articles on EcomCalcTools are reviewed quarterly. Fee data is sourced from official platform documentation and cross-referenced with current rate announcements. Last author review: April 2026.