A dress or a pair of slacks whose price has been discounted by 40 percent and then slashed again by another 40 percent has actually been reduced in price by only 64 percent, not 80 percent.
Kui kleidi või püksipaari hinda on alandatud algul 40 protsenti ja hiljem veel 40 protsenti, siis tegelikult on hind alanenud vaid 64 protsenti, mitte 80 protsenti.