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.
1. Select a cell. 2. To let Excel know that you want to enter a formula, type an equal sign (=). 3. For example, type the formula A1+A2. Tip: instead of typing A1 and A2, simply select cell A1 and cell A2. 4. Change the value of cell A1 to 3. Excel automatically recalculates the value of cell A3.