Hi, I'm creating a train report for a company using Excel.
This report initialises once a month and keeps an average of the last thirty trains dumped.
What I want to do is have a list on a separate worksheet that keeps track of the last thirty trains dumped. This list will always be equal to thirty so when a new train adds on to the list the oldest train in the list dissapears. Meanwhile there is a formula that calculates the average of the thirty last trains. Does anybody have any idea how to go about doing this?
Thx
This report initialises once a month and keeps an average of the last thirty trains dumped.
What I want to do is have a list on a separate worksheet that keeps track of the last thirty trains dumped. This list will always be equal to thirty so when a new train adds on to the list the oldest train in the list dissapears. Meanwhile there is a formula that calculates the average of the thirty last trains. Does anybody have any idea how to go about doing this?
Thx