I think you missed the point. If they were both the same size jar (2kg or 1kg, it doesn’t matter), then there may be a difference in price between regular and lite.
But the 1k jar is listed as being less expensive per 100g, and that’s flat out wrong when you do the math.
I get an ad for a crypto app! (Canada).
I do have my privacy settings locked down, so they are listing non-targeted ads.