The purpose of this research is to analyze the influence of product variations and

sales promotion toward sales performance of PT Muara Krakatau II both

partially and simultaneously. The Independent variables studied in this research

are product variation and sales promotion, meanwhile the sales performance as

the dependent variable. This is a quantitative research using secondary data in

the form of time series in quarterly starting at 2015-2017. The analysis method

used in this research are classic assumption test consist of (normality,

multicollinearity, heterocedasticity, autocorrelation, and linearity test), t-test,Ftest,

multiple linier regression test and coefficient of determination (R2). The

result of structural equation is Sales Performance=0,806 Product Variation +

0,331 Sales Promotion. The result of significant parameter t-Test stated that both

independent variables namely Product Variations and Sales Promotion partially

has a significant influence on Sales Performance. The result of F-Test shows that

simultaneously there is a significant influence among Product Variations and

Sales Promotion on Sales Performance. The coefficient Determination (Adjusted

R2 value) of the model is (0,883) 88,3% meaning that the contribution of Product

Variations and Sales Promotion to Sales Performance of PT Muara Krakatau II is

88,3%. The rest of the contribution 11,7% is affected by other variables that are

not describes in this research.