Follow the below steps:
1. Select the marks pane from Automatic to Shapes.
2. Now create a calculated field to find the difference
diff = ZN(SUM([Profit])) - LOOKUP(ZN(SUM([Profit])), -1)
3. Now create a calculated field to group the dimension(orders/regions, etc) into 2 groups as increase and decrease.
Arrows = IF DIFF> 200 THEN "UP" ELSE "DOWN" END
4. Now add the arrows group in shapes shelf and change the default symbols to arrows by clicking on the shape shelf.
Select Thin arrows in the drop down and select the data item and select the symbol from the symbols on the right side of the window. Then click ok.
Hope it helps.