Indeed, for some gems, such as diamonds, the price per carat can increase exponentially as the gem size increases. Therefore, a 1 carat stone may cost $1,000 while a 2 carat stone may cost $4,000. This means that good quality sapphires and rubies in larger sizes tend to have a much higher price per carat.
Re: Convert positive # to negative. Hi, if you positive number is in A1, use the following formula to convert it to a negative number =A1*-1 Time values can not be negative. Microsoft MVP http://www.teylyn.com Twitter: http://twitter.com/IngeborgNZ. Microsoft MVP.
Copy the entire new column, click the first cell tat u need changes, right click mouse, select  paste special, check the box values, then ok. With this, the numbers will turn to negative o. U will still be able to find paste special from top options edit functions.opy the entire new column, click the first cell tat u need changes, right click mouse, select  paste special, check the box values, then ok. With this, the numbers will turn to negative o. U will still be able to find paste special from top options edit functions.