How much are gold and platinum? Then calculate the profit.

Sum up expenses. The fixed fee, electricity fee, labor rent and electricity fee are 3500 yuan per month 1 16.667 yuan, and the monthly rent for ten thousand people is 333.33 yuan per month 100 yuan. This is a stupid way to make a profit. But you are also practical. I hope it helps you. I look forward to your compliment. Thank you for your encouragement.