KT Televisions, a US firm, has a Chinese subsidiary that manufactures and sells TVs in China.

1. The main input is priced in USD (USD100/unit)
2. All other costs are in CNY (Fixed cost=CNY4M, Variable cost= CNY400/unit).
3. Depreciation = CNY1M
4. S₀ = CNY6/USD
5. Expects to sell 6,000 TVs this year at CNY2,000 each.
6. Tax rate=30%; assuming tax credits are available for immediate use if losses occur.

How many unit KT Televisions needs to sell to break-even in operating cash flows in dollars?