Hope you could help me with this. This is an "amount estimate" table. The computation centers on the Amt column. There will be a set amount in this column, e.g. 400. Then two columns on the left, to adjust values, one to increase (+) and the other to decrease (-) value in the Amt column. e.g. a 100 in increase(+)column and a 200 in the decrease (-) column, makes the Amt column to 300.
On the right of the Amt column is another set of two columns, this time its percent increase (+%) and the other column is percent decrease (-%). These two columns will represent the % expression of the increase (+) column and the decrease (+) column, i.e. 25% for the percent increase and 50% for the percent decrease.
Now, the amount initially entered should adjust based on the entries in either the percent or values columns. Example, this will be done by inserting a value in either the increase or decrease column. When that value is added it needs the value to automatically be added to Amt column and then show the % increase or % decrease. It should also work the opther way. If a value is entered at the increase or decrease using the % columns, they have to just put a value in the +% or -% column and it will automatically show the value that it has increased or decreased the Amt column.
File here - h**p://www.mediafire.com/file/nmyfyxygxm2/Sample.xls