Abstract
This study aims to examine how much influence Product Quality (X1), Service (X2), and Advertising (X3) have on Consumer Satisfaction (Y) at J. Co Donuts & Coffee. This research is a quantitative research with non-probability sampling method with accidental sampling technique. The population in this study are the students of the Economics Faculty, Universitas Bhayangkara Jakarta Raya, Management program. With a research sample of 146 people, using the accidental sampling formula. This research was conducted using the SPSS version 25 program. The result of the Coefficient of Determination Test for adjusted R square, was obtained at 0.571. This means that 57.1% while the remaining 42.9% is explained by other causes that are outside the variables of this study.
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