Matching google shopping shipping rates (fedex ground)

Zencart 1.5.4

Issue Fedex Rates – Ground
I am trying to match google shopping - shipping rates via (fedex ground)

I am having some issue with the Fedexwebservice

1. Anything that is 1lbs – 9lbs are calculating correctly (fedexground) – does not need to be adjusted

2. Anything 9lbs and up - rates are not correct. Seems as if an extra $3.00 is calculated into the the shipping cost via (fedex ground)

When I try and add a handing fee it adds it to both 1-9lbs and 9lbs and up. It makes it impossible to figure out the correct cost unless I am missing something.

If someone could assist me or lead me in the right direction I would greatly appreciate it.

Seems as if an extra $3.00 is calculated into the the shipping cost via (fedex ground)
Have a look at
admin > config > Shipping/Packaging > Larger packages - added packaging percentage:weight
and
admin > config > Shipping/Packaging > Package Tare Small to Medium - added percentage:weight

I tried that option but it does not work for me. Maybe you can show me an example. I could be misunderstanding your recommendation....

Just to clarify I am looking

I am having some issue with the Fedexwebservice

1. Anything that is 1lbs – 9lbs are calculating correctly (fedexground) – does not need to be adjusted

2. Anything 9lbs and up - rates are not correct. Seems as if an extra $3.00 is calculated into the the shipping cost via (fedex ground)

When I try and add a handing fee it adds it to both 1-9lbs and 9lbs and up. It makes it impossible to figure out the correct cost unless I am missing something.

I tried that option but it does not work for me.
Sorry I was thinking lbs and not $

Just giving an update. I spoke with fedex and it looks like the rates are correct. It is google that does not add in certain criteria based on shipping. So basically I am leaving everything as is.

I spoke with fedex and it looks like the rates are correct.
Anything 9lbs and up - rates are not correct. Seems as if an extra $3.00 is calculated into the the shipping cost via (fedex ground)
So did you determine where the extra $3.00 comes from??

"So did you determine where the extra $3.00 comes from?"

it is a surcharge. A Fedex Fee....

Fedex said: It would be difficult for google to get the exact shipping price based on just weight. What they do is the lowest possible fee without any surcharges.