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.
Select the cell that will contain the answer. All functions in Excel start with an equals sign, =. Type in the function that you would like to calculate. You can select a cell or group of cells as variables. For example, to add the value in cell A1 to the value in cell A2, you can type in the function =A1 + A2. An alternative method: Type =.