In this paper the budgeting procedures of a hypothetical bank to enter market and investing activities have been studied on the basis of the three factors; inflation rate, liquidity rate and GDP (Growth Domestic Products) employing General Linear Model. Related information was collected randomly from the year 2001 to 2007, and then analyzed statistically by the software Minitab version 15 and SPSS version 11.The result of the research showed that the inflation rate and liquidity grown had noticeable impact on GDP so the analysis proved a correlation coefficient relation between the variables with a range of 96 per cent. According to the analysis on the basis of a linear regression method in one hand and the variance obtained from the GLM process, some 83 per cent of correlation coefficient could be witnessed between Liquidity and inflation growth; while a 75 per cent of meaningful correlation coefficient can be traced in the effect of inflation rate on liquidity.