I make my own spreadsheet every month. Awarded line in a vertical "refrigerator list" type format with every drop, add, and swap moving right across the page from the original line. Track overages daily and write them in when I get a chance. Also helps to actually know how transistion pay works which most don't. I total everything up at the end of the month and wait for my pay audit and check to come to compare. Never had a problem and I'm very meticulous. The one time I did it was an addition error by me and I embarrassed myself with payroll.