Look at the price tag
find the item on ebay to see what other are selling it for
It's easy you need to use function for decimal in binary.
binary STD;
int STD_no;
STD=STD_No.ToBinary
The focal point is where the eye is drawn to in a photo or image.
Explanation:
the higher demand of people
the urge to make the busy life easier
the competition between countries and people etc