squiggley said:I tried to point this out earlier but it was deleted. I know its AE
In calculating the costs you have only used the base cost and not any delivery costs and products bought from AE.
Cost of AE Aqua Carbon 500ml = Â£8.00 + Â£4.95 p&p = Â£12.95 500/ 4 = 125days (10.36p per day)
Cost of Easycarbo (cheapest place) 500ml Â£9.90+ 2.90 p&p = Â£12.80 500/ 4 = 125days (10.24p per day)
Theres not a lot of difference.
postage cost would be the same on all the products from AE though, i was just calculating the cost of the liquid carbon on its own. And only at AE.