We have 200 books, and they decrease a 75%. This means that we have to find the difference between the 200 books and its 75%. So, first, we have to find how many books are 75%.
0.75(200)=150
If the books decrease a 75%, this means that after the decrease there are only 50 books, because
200-150=50.
<h3>Therefore, the 75% decrease of 200 books is 50 books, which represent the final 25%</h3>
