I saw plenty of threads regarding creating running totals across rows, however is there a way to take the initial value in the first column, and then as the columns continue on, subtract the next values from the original.
Think of having a starting amount of $1,000. Then as the years progress, you subtract x amount from that initial $1,000. So year one may be 1,000 - 50, then year two: 950 - 25, then year three: 925 - 75… and so on. And this is happening across columns, not down a single column.