I am using a carrier of my own, attempting to ship internationally, and the rates are calculated by weight
for example, the shipping rate to the United States is: the first 1kg is $10, and everything exceeding 1kg will be $2 per 50g
As such, if I have an order that is 2.7kg, or 2700g, the calculation will be as follows:
$10 + $2 * [(2700-1000)/50] = $78
And at the check out menu, the customer should be able to $78 as the shipping cost.
Is there any way for me to set this up either with built-in Shopify functions or third-party apps?
Thanks in advance.