The long term costs and savings of Ranch salad dressing

I make home-made Ranch
dressing from scratch now.

I made a recipe of Ranch dressing from a powder package of Hidden Valley brand with Buttermilk and Mayonnaise. The total cost was $6.09 + tax.

It began to dawn on me that I could save money in the long term by making the recipe myself from scratch, but the initial investment would be $24.60+ tax. I had some time so I did a little research and came up with the following table:


I hope this is accurate. The package labels show the net weight and I had to use the Aqua-Calc website to convert to the Volume of each spice. A teaspoon of black pepper doesn't weigh the same as as a teaspoon of chives.

Anyway according to my questionable calculations, by making Ranch salad dressing completely from scratch would save me roughly $2.71 per recipe.

Because each ingredient comes in a different size, I calculated from the ingredient I would only need to buy once, Salt, and extrapolated the total number of purchases of the other ingredients in order to make an even number of complete recipes, 1000. My total savings would be around $2700.00 from not buying a thousand bottles. I would also only generate 489 wasted containers, so it also saves the environ