DataGridView quantity not adding up

[ivansmo]

@ivansmo… If you’re dealing with currency, I’d use Decimals instead of Doubles. Doubles are floating point numbers and nowhere near as accurate as Decimals. Also a Cell Value is type Object, and to be efficient you need to cast the Value as a numeric type.
Try turning Option Strict on in your project. Your code will light up like a Christmas tree😁👍🎄

Hey man, I saw your pages (games, wiki...) and I like them. I see you're an experienced programmer.

I hope someday you'll give me some help Later, when a Christmass tree turns off...