Hoffman A1 Profit/Loss

The goal is to provide a judge with an easy-to-read, possibly rolling graph/chart that shows profit or loss for any number of consecutive months. I have attached a spreadsheet with the data and we need the date (Col A) and monthly profit/loss for Columns I and J) I was hoping we could also include the data in the other columns in some way as well. The final product would allow me to show that during any given period we made or lost money. Thank you!