Stuck on my calculations within a for loop for projected savings

I need my output to start year till end year while outputting annual savings, interest savings, and total savings over time. I have all the calculations, but cannot figure out how to make it compound each subsequent year. My inputs are annual_savings, start_year, end_year, retirenment_year, and interest_rate. This is the for loop I have currently and its only outputting one row with incorrect calculations.

for i in range(start_year, end_year+1):
    if current_year <= end_year:
        add_save=ann_save
        if current_year>end_year:
              add_save=0           
    tot_save=ann_save+add_save
    int_save=(tot_save+add_save)*(interest_rate/100)
    print(current_year,ann_save,int_save,tot_save)
    current_year=current_year+1