How does the current price of a commodity compare with the original price

How does the current price of a commodity compare with the original price

It's low. It's 1 / 64 lower

The price of a commodity is increased by 20% and then decreased by 20%
The price of a commodity is increased by 20% and then decreased by 20%
A. B. It's expensive C. It's cheap

A*(1+20%)(1-20%)
=A*1.2*0.8
=0.96A
Choose C

The original price of a coat is 100 yuan. First it is reduced by 10%, then it is increased by 10%______ (judge right or wrong)

100 × (1-10%) × (1 + 10%), = 100 × 0.9 × 1.1, = 99 yuan; because the current price is 99 yuan, the price of this coat is still 100 yuan, which is wrong