Example how to find the potential rent from sale price and cap rate. With cap rate you can almost figure out the rent by working back wards, Sales price $5,986,20 x cap rate .05 = NOI $299,313. Expenses are probably around 30% for industrial therefore NOI $299,313 divided by 70% = $427,590 Effective Gross Income divided by 92% (8% vacancy) = $464,771 Potential Gross Income now divided by SF 57,012 = annual rental rate is approximately $8/SF.