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.
Re: Negative Numbers To Zero. Hey, Firstly, in order to get the answer to F6-D6 you don't need to use Sum, that is =F6-D6 would give you exactly the same answer. What you can do is use an IF statement that sets the cell value to zero if the answer if less than 0. Use: =IF(F6-D6<0, 0, F6-D6)