When I create an invoice for my customers, alot of my customers decide to pay me over time. Those that opt in to pay over time make a monthly payment to me. As I run some reports, I am trying to figure out two things: 1. How many months does it take for each invoice to get paid in full? 2. In how many months is 1/2 the invoice amount paid. I want to know this because when 1/2 the invoice is paid, I offer them other discounts. I attached a sample of my report I export. I added two columns (B and C). I put the answers in those columns that I am hoping you can help me with the formula. So, can you please help me with the formulas in columns B and C? Thank you in advance!!!