how to define Packge Tare Small to Medium or Larger ??

I know there has configure to setup

Package Tare Small to Medium - added percentage:weight 0:0
Larger packages - added packaging percentage:weight 0:0
Package Tare Small to Medium - added percentage:weight
What is the weight of typical packaging of small to medium packages?
Example: 10% + 1lb 10:1
10% + 0lbs 10:0
0% + 5lbs 0:5
0% + 0lbs 0:0

but where to set up which one is small or large
and
10% + 0lbs 10:0
0% + 5lbs 0:5
0% + 0lbs 0:0

what is 10% means, is 10% of product weight or ??

Could you give us a little more information. What mod you are using would help.
Most shipping mods allow you to set the size or weight for those boxes. Tare is just an additional fee that you can add but, be aware that the modern, on-line shopper is pretty savvy on shipping cost.
Percentages are based on the systems determination of the shipping cost and the second setting just adds extra weight if your packaging is heavier than most or you want to charge extra for something like padded envelopes.
In the US, if your shipping cost figures out to $1.50, a tare setting of 10:1 would result in the addition of $0.15 to the total fee and an additional pound to the weight.