Hi all

Up until now, my store has based it's shipping cost based on order value. I need to now change it to shipping based on total weight of order. I thought it would be a simple task of changing the checkbox to 'weight' and then changing the formula. However, when I estimate shipping, i'm getting totally incorrect figures. Here's what I have setup (weight in grams):

Table Rate

Enable Table Method
True

Shipping Table
0-100:1.50,101-240:2.25,241-300:2.75,301-500:275,501-750:3.25,751-1000:3.95,1001-1250:5.00,1251-1500:5.70,1501-1750:6.40,1751-2000:7.20

Table Method
weight

Handling Fee
0

Tax Class
--none--

Tax Basis
Shipping

Shipping Zone
UK

Sort Order
0