Let’s suppose you got a product you just launched and you have no ranking, no reviews no nothing, you cannot expect the product to start selling immediately, this is where the PPC comes in, it pushes your product to the customers because the customer cannot buy something they cannot see, so PPC solves that problem, but this is for the start, however, if you look brand such as Samsung and other brands alike are using PPC, to stay on top as the customer are generally lazy they don’t want to keep on scrolling, if you provide them with a good price and have good reviews, immediately this builds a trust factor they will purchase from top of the search and get done with it, so that is how PPC helps with sales in basic terms.