VAR BASED SIMULATION QUESTION

[UGOAGU]

I work on EVIEWS 6. I am trying to simulate the imapct of a 4% reduction on interest rate and 5% increase on credit in a set of 4 endogeneous variables. - GDP, CREDIT , INTEREST RATE AND EXCHANGE RATE. I have ran the VAR used proc-make model-solve the model (2000 - 2008) for the simulation but I could not effect the percentage differences on those two variables. Please can anyone help with how to write that in batch programming or manually impute a command of such to generate both actual and scenario graphs and data.