Calculate a % of a Balance

[#1]

Hi, 

I need to calculate mortgages that are in arrears (arrears_bal_excl_fees)  by 1.5% or more than the outstanding balance (bal_sasout). 

How do I go about doing this please? 

data mortgage_arrs;
set mortbib.mortgage_&curr_month. (Keep= arrears_bal_excl_fees monthly_pmt bal_sasout);
run;

[RW9]

Well, 

if (arrears_bal_excl_fees / bal_sasout) * 100 > 1.5 then ...;