The original price of a certain commodity is 200 yuan. The first price reduction is 10%, and the second price reduction is 10%. What is the result of changing 200 yuan to a yuan

The original price of a certain commodity is 200 yuan. The first price reduction is 10%, and the second price reduction is 10%. What is the result of changing 200 yuan to a yuan

A × (1-10%) × (1-10%) = 0.81a yuan