A commodity is priced at 15% of the profit, and then it is sold at a 10% discount. As a result, each commodity still earns 70 yuan. How far is the cost price of this commodity?

A commodity is priced at 15% of the profit, and then it is sold at a 10% discount. As a result, each commodity still earns 70 yuan. How far is the cost price of this commodity?

70 ÷ [(1 + 15%) × 90% - 1] = 2000 yuan