Weldone mate works like a charm.

Without these formulas I may had to do these the old fashion way which was to copy paste results week by week (something I did during the summer). This would save me hours/days/weeks.
Are you available on the weekend/next week because I'm planning to mass calculate my data then? Your formulas look sound and solid and hopefully I won't be needing you again but I'll let you know if I encounter any issue.

I'm really gratefule for your help again.