Gyro works only upside down

[Sanchez03]

The Gyro in our robot only works properly if placed upside down. Any reason why? Thanks

[Penguin1]

The gyro reports values in negative if turning clockwise, and positive in counter-clockwise. So you can do 0 - gyro value to make it normal

[Sanchez03]

Where do I put that in my code? “0-gyro”.
These are the subroutines where I have gyro:

Thanks

[Penguin1]

You do this