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.
up vote 0 down vote. If you just use PM and AM, Excel assumes that is the same day. Since PM comes after AM the result of B1 - A1 will be a negative number. You can use =Max(A1, B1) - Min(A1, B1) to always get the ellapsed time.p vote 0 down vote. If you just use PM and AM, Excel assumes that is the same day. Since PM comes after AM the result of B1 - A1 will be a negative number. You can use =Max(A1, B1) - Min(A1, B1) to always get the ellapsed time.