Same question.
example:
product 1 package weight is 8oz, USPS postage calculator site says $4.39 for First Class Package. My website cart shows $2.05.
product 2 package weight is 4oz, USPS postage calculator site says $3.66 for First Class Package. My website cart shows $1.45.
combined package weight is 12oz, USPS postage calculator site says $5.19 for First Class Package. My website cart shows $2.65
These amounts are WAY OFF. How do I fix this? Or do I need to find another plugin.
