The incremental decision is used to analyze financial information, important for the decision making. It's a problem-solving oriented method. It is based on variable accounting concepts, using fixed costs and variable. Identifying and using relevant costs, studying the future impact for market, using all the mentioned costs.
The arrival of Europeans had a negative impact for Indian peoples. They lost much of their land, they were exposed to new diseases, they were turned into slaves, their whole lifestyle was affected.