According to Kotler (2001), the average level of satisfaction of a person derived from the comparison of results obtained from the product / service with the expectations of the person. The expectations have been considered desires or expectations of the buyer. It originates from personal needs, experience and external information such as advertising, information mouth from friends, family,
for example the level of satisfaction is a function of the difference between the results received and expectations. Customers can get a feel satisfaction following three: If the result is lower than expected, then the customer will not be satisfied. If the results are consistent with the expectations of the customers will be satisfied. If actual results exceeded the expectations of customers are very happy and excited.
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