To change the scrolling direction on your Mac, open the Apple menu, choose System Preferences> Trackpad or Mouse, and deselect Scroll Direction: Normal.
Steps
Method 1 of 2: Trackpad

Step 1. Open the Apple menu
Click on the Apple logo in the upper left corner.

Step 2. Click System Preferences

Step 3. Click on "Trackpad"

Step 4. Click Scroll & Zoom

Step 5. Uncheck the Scroll Direction checkbox
usual ".

Step 6. Click on the red "X" symbol
The changes made will be saved.
Method 2 of 2: Mouse

Step 1. Open the Apple menu
Click on the Apple logo in the upper left corner.

Step 2. Click System Preferences

Step 3. Click on "Mouse"

Step 4. Uncheck the "Scroll Direction
usual."

Step 5. Click on the red "X" symbol
The changes made will be saved.