Pengaruh Biaya Promosi, Biaya Kualitas, dan Pertumbuhan Penjualan terhadap Perubahan Laba Bersih

This research is a quantitative study that aims to analyze the effect of promotion cost, quality cost, and sales growth on profit growth. In this research, the population is the manufacturing company on IDX during the priode 2017 to 2019. Thus research used the Cluster Random Sampling by using the Slovin formula and collected a sample of 108 research data. The hypothesis in this research was tested by Multiple Linear Regression Analysis techniques with a significance level of 5%. The results obtained from this research are promotion cost have not effect on profit growth, quality cost have a negative effect on profit growth, and sales growth have a positive effect on profit growth.