1 share=125nxt.
1000 shares=125000nxt, that are ~0.00008btc*125000nxt=10btc.
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1000 shares will give me ~0.03*4weeks=0.12btc per month;
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So payment for 10btc will give me 0.12btc per month. Am I right?
So Neptune miner will give more profit under the same risks.