ROI Calculator for Reselling
Calculate your return on investment, profit margin, and hourly earnings for reselling items on Japanese flea market apps.
Include sourcing, listing, packaging, and shipping time
Understanding ROI for Reselling
What is ROI?
Return on Investment (ROI) shows how much profit you make relative to your initial investment. An ROI of 100% means you doubled your money.
Hourly Rate Matters
A ¥500 profit on 2 hours of work is only ¥250/hour. Compare this to minimum wage (¥1,000+/hour in Tokyo) to see if reselling is worth your time.
Platform Fees
- Mercari: 10% of sale price
- Yahoo Auctions: 8.8% (premium members)
- Rakuma: 6% (lowest fee)
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Last updated: March 2026