The price of a commodity is reduced by 20% and then increased by 10%. The current price of this commodity is the original price

The price of a commodity is reduced by 20% and then increased by 10%. The current price of this commodity is the original price

Make the original price 1
The current price is 1 × (1-20%) × (1 + 10%) = 0.8 × 1.1 = 0.88
So the current price is 0.88 △ 1 × 100% = 88% of the original price