Answer:
500%
Step-by-step explanation:
The percentage change is given by ...
percent change = ((new value)/(old value) -1) × 100% = (180/30 -1)×100%
= (6 -1)×100% = 500%
Mobile device sales increased 500% from 1998 to 2007.
Answer:
Number of mobiles sold in the year 1998=30 million
Number of mobiles sold in the year 2007=180 million
Percentage increase in mobile sale from year 1998 to 2007 will be
[tex]=\frac{\text{final}-\text{Initial}}{\text{Initial}}\\\\=\frac{180-30}{30}\times100\\\\=\frac{150}{30} \times 100\\\\=\frac{15000}{30}\\\\=500\text{Percent}[/tex]
=500%
