Sales off

Goods is worth € 70 and the price of goods fell two weeks in a row by 10%. How many % decreased overall?

Result

x =  19 %

Solution:

x=100⋅ (1−0.90⋅ 0.90)=19%x=100 \cdot \ (1-0.90 \cdot \ 0.90)=19 \%

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