Hi,
Setting up the arrow icon based on the percentage you preferred can do by editing the rule that you’ve created. To do this, follow these steps:
- High-light the Difference and select Conditional Formatting under Home tab in Styles section at the top.
- Go to Edit Rule tab and under Rule Type, choose Format all cells based on their values.
- Choose Icon Sets for Format Style and choose the down, straight and up arrow for the Icon Style.
- Under Type, choose Number for both type boxes and under Value, type 0.005 for the first box and -0.005 for the second box.
- Click OK and select Apply and then OK. Here’s the screenshot below:
Let us know if the solution above works for you.