A retailer is considering opening a new store. The present value of cash flows generated by the new store is 6 million, with volatility 0.3. The cost of opening the store is 5 million. The retailer has the option of waitting one year before opening the new store. The cost of opening the store will still be 4 million at the end of the year, but free cash flows of 0.5 million will be lost due to the delay. The risk-free rate is 0.04. The cost of capital is 0.10. Beta for the retailer is 1.5. Calculate beta for the new store.