Make last year same time frame as current date selection an option as a
preset calendar. i.e. - Current month (this year) by just selecting
current month (so on jan. 15th would be Jan 1-15). Then make current
month last year an option based on only the number of days that have
happened so far this month. (so I would want jan 1-15th of last year,
not the entire month from last year) to do proper YOY analysis during a
given time frame.