I have a line chart that tracks the aggregate/cumulative profit and loss figures after each transaction, the horizontal axis just records the number of transactions as i add more transactions, the vertical axis records the cumulative profit and loss figures in £, all i want to to is add a vertical line at a couple of points on the chart, i have looked at google to try to help me with this but don't understand any of the answers .
on the attached spreadsheet i need different coloured vertical lines at points 145 and 511 on the horizontal axis and an explanation on how to do this so i can do ity on other sheets i have, i am totally baffled on something that i assumed would be simple, thanks
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