Question

Find each percent increase or decrease to the nearest percent.
1. from 14 books to 40 books
2. from 72 points to 50 points

Answer 1

Answer:

1. 185.71% 2. 30.56%

Step-by-step explanation:

(1) Initial no of books = 14

Final no of books = 40

Increase in books = 40-14 = 26

$\%\ \text{increase in books}=\dfrac{\text{increase in books}}{\text{initial no of books}}\times 100\\\\=\dfrac{26}{14}\times 100\\\\=185.71\%$

(2) Initial points = 72

Final points = 50

Decrease in points = 72-50= 22

$\%\ \text{decrease in points}=\dfrac{\text{decrease in points}}{\text{initial points}}\times 100\\\\=\dfrac{22}{72}\times 100\\\\=30.56\%$

Hence, this is the required solution.