This part allows you to see the evolution of market demand for your products. So you can know if your investments are in the good way or not, with a increase or decrease of the demand.
In more general terms, with your market share and with your ranking, you can know the health of your company face to competitorsp on the Simuland market.
The competition is tough on Simuland, and you must make known your products to the general public if you want to see your sales take off. This requires that your products are known by potential customers. The publicity will help you target new customers and new markets. The shelves of specialty shops will be full of your products, but they should be well placed on the shelves for customers to be bought. Between two identical products, if there is one that customers know and another which they have never heard of, their choice will be made soon.
Research and development can differentiate your products from your competitors products. If you do not invest in R&D, maybe you can take survive a few laps. But after, buyers would prefer to look to new products more "high tech" as yours, and you could then put the key under the door (that means bankrupcy).
Many parameters affect the quality of your products, including the type of your machines, the morale of your workers and commercial people, among others. The good quality of your products can reduced products returning, but also increase customer confidence for your products.
There is therefore no decision associated to "quality budget", because all the above factors will determine the quality of your products.