Question

A number is first increased by 20% and then decreased by 15%. Find the net increase or

decrease percent.

Answer 1

20-15-(20×15)/100
5-300/100
5-3
2 percent will be the answer

Answer 2

20% increased
15% decreased

$20 - 15 + \frac{20 \times ( - 15)}{100} \\ 5 - \frac{300}{100} \\ 5 - 3 \\ 2$

so number increased by 2%