The price of a batch of goods is reduced by 20% for the first time and 20% for the second time, which is lower than the original price______ %.

The price of a batch of goods is reduced by 20% for the first time and 20% for the second time, which is lower than the original price______ %.

(1-20%) × (1-20%), = 80% × 80%, = 64%; 1-64% = 36%; a: the price of this batch of goods is 36% lower than the original price