Hello. I'm trying to find a formula that will add the number of overtime hours worked each month and then total them by year as each month goes by. For example, some of our guys are working overtime in March and I'm scheduling hours for that month even though we're still in January. They are currently working OT so is there any way I can see the sum of hours worked as we go through the year? For example, if I want to look at June, I'd like to see the total sum of hours from Jan-June. Can someone help provide a formula to do that? Thanks in advance.