Global % on top of all shipping rates

Is there a way to add a global percentage on top of all shipping rates?

I have about 50 regions that I have manually adding in, so I don’t want to change them each time but wish to add 10% on each rate or maybe next week make it 20%, etc.

If anyone knows of an easy way to do this or where the code is to add a ’ * 1.1’ or something in there, please let me know.