In a book store, the sales of a book decreased by 80% from 2007 to 2008. If the sales in 2009 were the same as in 2007, would be the percentage increase in sales from 2008 to 2009?
Created: 6 years ago |
Updated: 2 years ago
best des
let, in 2007 was = 100
,, 2008 ,, = 20
,, 2009 ,, = 100
increase percentage = ( 100 - 20/20)
= 400% (answer)
Md Azizur Rahman
Founder of Satt
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