setting weight-based shipping
I am trying to set up a 3 tier, weight-based shipping, but the cart in Powerstore isn't very flexible. The formulae I used in Ecart were:
if w=0, 15.00
if w>0 but <30, 20.00
if w>30, 30.00
How do I make this work in PowerStore, as I can't seem to get it.