01) Access the control panel of your online store

02) After login click Modules >> Delivery >> Select Postings - Pac >> Click the INSTALL / EDIT button

03) Fill in the fields:
- Zone (Rates)

Description / Legend of Zone values (Rates):
1 = Weight in KG
: Division of weight x price
20.00 = Price for 1 KG
, = Division for next weight and price

Legend Weight:
100 grams fill only 0.100
1 kg and 500 grams fill only 1.5
1 kg and 20 grams fill only 1020