Adding to figures transferred from another worksheet

Hi All,


I'm not too experienced with Excel so I'll do my best to explain as clearly as I can!

I am in the process of creating a spreadsheet to document employee holidays taken over 2014. Each month is shown on a different worksheet with a 'Total' column on the far right which calculates the number of holidays (represented by 'H') taken by individual employees. The formula I have used to achieve this is =COUNTIF(D6:AH6,"H").

I have transferred the figures in the 'Total' column across the other worksheets, however I now need to add any further holidays taken to the figure that has been carried over from the months previous.

I have added a couple of images which hopefully help clarify my problem. In January, the total number of days leave taken by Thompson is 6. This figure has been carried over onto the February worksheet as shown, however if I place more 'H's' on the same row then I need the total column to reflect both these and the ones from January.

Jan.JPG Feb.JPG


Thanks for your help!