I need help, here I also attached image of excel sheet to explain my question. I have this installment payment sheet. Payed amount to be entered in column E. What I want, I want to enter amount in column E regardless of months for example I had payed 3,76,000 rupees in 15 July and then second installment I had payed in 31 Dec. I need formula to split my payed amount based on installments amount mentioned in column C and fill up automatically column F and G. You can also notice that when I had payed 3,76,000 rupees on 15 July 2019 then payed amount were distributed in column F till F4 and I got 9000 rupees in F4 and when I payed 3,58,000 rupees on 31 Dec 2019 then 1,74,500 rupees add up in F4 to make it 1,83,500 as per C3. Can you please design a formula which can fill up F and G column for me. Further Blank cells in column E can be ignored. Hope you understood my question. Thanks a lot in advance for your help.