From 2004 to 2005. the sales of a book decreased by 80%. If the sales in 2006 were the same as in 2004, by what percent did they increase from 2005 to 2006 ?
Created: 6 years ago |
Updated: 8 months ago
best des
let, 100 copies were sold in 2004
∴copies sold in 2005 = 100 - 80 = 20
copies sold in 2006 = 100
so, required increase = (100 - 20)/20 × 100 = 400% (ans)
Md Azizur Rahman
Founder of Satt
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